{"title":"Saltwater Test Kits","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003eCorrect water conditions are essential for the health and development of both fish and coral well being and therefore should be checked regularly\u003c\/span\u003e\u003c\/p\u003e","products":[{"product_id":"api-liquid-calcium-test-kit","title":"API Liquid Calcium Test Kit","description":"Calcium is one of the most important elements in a reef aquarium. Reef invertebrates, such as corals, crustaceans, mollusks, and even some type of encrusting algae, need calcium to grow and remain healthy. Over time, the calcium level drops as it is used by invertebrates, or as it reacts with excess phosphate. The API® CALCIUM TEST KIT measures calcium levels as low as 20 mg\/L to help you keep your reef inhabitants healthy.\u003cspan\u003e\u003cbr\u003e\u003cbr\u003eContains 2 test bottles, easy-to-ready instructions, and glass test tube\u003cbr\u003e\u003c\/span\u003e\u003cul\u003e\u003cli\u003eDo I need to test calcium parameters in a freshwater aquarium?\u003c\/li\u003e\u003c\/ul\u003eNo, calcium levels need to be monitored and maintained in reef or marine aquariums, as improper levels can be harmful to corals and crustaceans.\u003cul\u003e\u003cli\u003eHow often should I test my calcium levels?\u003c\/li\u003e\u003c\/ul\u003eFor best results, test calcium levels with API CALCIUM TEST KIT in your saltwater tank weekly.\u003cspan\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e","brand":"API","offers":[{"title":"Default Title","offer_id":40199845216391,"sku":"025171","price":8.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/api-liquid-calcium-test-kit-428401.jpg?v=1731255816"},{"product_id":"tropic-marin-nitrite-nitrate-professional-test-kit","title":"Tropic Marin Nitrite\/Nitrate Professional Test Kit","description":"\u003cspan\u003eFor high precision determination of the nitrite and nitrate concentration\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003eNitrate ions (NO3–) are formed from ammonium (NH4+) as the end product of the nitrification process. Nitrite (NO2–\u003cspan\u003e), which is highly toxic to freshwater species in particular, is produced in the first stage of the bacterial process. If the nitrification process works, nitrite is converted to the comparatively non-toxic nitrate in the second stage. Increased levels of nitrite above 0.05 mg\/l (ppm) are usually found in tanks that are in their maturation phase or in tanks with nitrate filters.\u003cbr\u003e\u003c\/span\u003e\u003cbr\u003eNitrate affects the quality of the water in the aquarium: Higher concentrations of nitrate in saltwater aquariums will end up inhibiting the growth of delicate coral. An algal bloom is often the result of a high nitrate level in an aquarium. Some reef aquariums have ultra-low nutrient conditions – nitrate shortages can occur in cases such as these. Therefore, the nitrate concentration in the aquarium water should be tested regularly. It is advisable to keep the nitrate concentration in freshwater aquariums below 50 mg\/l (ppm), whereas the concentration should not exceed 20 mg\/l (ppm) in saltwater applications. When nurturing hard coral, the aim is to keep the nitrate concentration below 10 mg\/l (ppm). \u003cspan\u003eLower limits for nitrate depend on the general conditions in the aquarium.\u003cbr\u003e\u003c\/span\u003e\u003cbr\u003eWith the high resolution Tropic Marin® Nitrite\/Nitrate-Test Professional\u003cspan\u003e the nitrite and nitrate concentrations can be determined with a particularly high accuracy in the low concentration range between 0 and 1 ppm for nitrite and between 0 – 20 ppm for nitrate.\u003cbr\u003e\u003c\/span\u003e\u003cbr\u003e\u003cdiv\u003eBenefits:\u003cbr\u003e\u003cbr\u003e\n\u003c\/div\u003e\u003cspan\u003e\u003cspan\u003e• \u003cspan\u003eMeasurement range: NO2 0 – 1,0 mg\/l (ppm)\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan\u003e• \u003cspan\u003eMeasurement range: NO3 0 – 20 mg\/l (ppm)\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e• Accuracy: NO2 0.002 mg\/l\u003cspan\u003e•\u003cspan\u003eAccuracy: NO3 0.05 mg\/l\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan\u003e• For determining the nitrite\/nitrate concentration in aquaria\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003e• Incl. comparator and phosphate standard to check function and shelf life of the test reagents\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003e• \u003cspan\u003eSufficient for approximately 50 applications\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cdiv\u003eHow to use:\u003cbr\u003e\u003cbr\u003e\n\u003c\/div\u003e\u003cspan\u003eDetermining the nitrite level:\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003e\u003cspan\u003e1.Shake the bottles before use!\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003e2.Rinse out the glass cuvette with tap water and then several times with aquarium water.\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003e3.Fill the glass cuvette with exactly 15 ml of aquarium water using the dosing syringe and place it in the comparator which serves as a cuvette stand.\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003e4.\u003cspan\u003ePlace the dropper tip on the 1 ml dosing syringe, add 1 ml test reagent A, close the glass cuvette using the stopper, briefly shake the solution and place it back in the comparator.\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan\u003e\u003cspan\u003e5.Then add 4 drops of test reagent C, close the glass cuvette once again, shake it briefly and place it back in the comparator.\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003e6.\u003cspan\u003eAfter 3 minutes of development time, place the glass cuvette in the comparator on the white circles of the nitrite colour card in such a way that the second free opening on the comparator (without cuvette) is underneath the colour card (not on the colour fields) and the narrow end face of the comparator is facing the colour fields. Now the colour of the water sample is compared to the opposing colour fields by daylight conditions. To do this, look into the open cuvette from above. Move the sample on the colour card until the cuvette colour and the colour field colour match exactly.\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan\u003e7.\u003cspan\u003eRead off the measured nitrite value under the relevant colour field. If the colours do not match exactly, an intermediate value can be estimated.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan\u003eDetermining the nitrate level:\u003cbr\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003cspan\u003e1.Shake the bottles before use!\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003e2.Rinse out the glass cuvette with tap water and then several times with aquarium water.\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003e3.Fill the glass cuvette with exactly 15 ml of aquarium water using the dosing syringe and place it in the comparator which serves as a cuvette stand.\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003e4.\u003cspan\u003ePlace the dropper tip on the 1 ml dosing syringe, draw out 1 ml of test reagent A and add it to the water sample. Close the glass cuvette using the stopper, briefly shake the sample and place it back in the comparator.\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e5.Shake the bottle with test reagent B vigorously in a horizontal direction for approx. 30 seconds (the reagent must be well shaken).  Then add 10 drops of test reagent B to the aquarium sample, close the cuvette again, shake it briefly and place it back in the comparator.\u003cbr\u003e6.After 3 minutes of development time, add 4 drops of test reagent C, close the glass cuvette once again, shake it briefly and place it back in the comparator.\u003cbr\u003e7.After another 3 minutes of development time, place the comparator on the white circles of the nitrate colour card in such a way that the second free opening on the comparator (without cuvette) is underneath the colour card (not on the colour fields) and the narrow end face of the comparator is facing the colour fields. Look into the open cuvette from above and compare it to the opposing colour fields by daylight conditions. Move the sample on the colour card until the cuvette colour and the colour field colour match exactly.\u003cbr\u003e8.Read off the measured nitrate value under the relevant colour field. If the colours do not match exactly, an intermediate value can be estimated.\u003cbr\u003e9.Rinse out the glass cuvette, the syringe and the dropper tip thoroughly with tap water after the measurement process.\u003cbr\u003e\u003cbr\u003eNote\u003cspan\u003eNitrite concentrations affect the nitrate measurement. Therefore, the nitrite concentration should also be measured and, if required, the nitrate results should be corrected in relation to the \u003ca href=\"https:\/\/www.tropic-marin.com\/wp-content\/uploads\/2017\/01\/tabelle-no2-no3-test-professional.jpg\" target=\"_blank\" rel=\"\"\u003etable\u003c\/a\u003e before carrying out the nitrate measurement. High nitrite levels are usually found in tanks that are in their maturation phase or in tanks with nitrate filters.\u003c\/span\u003e\u003cdiv\u003e\n\u003cbr\u003eUsing the “standard” to verify the test\u003cbr\u003e\u003cspan\u003e\u003cbr\u003eThe shelf life of reagents depends on storage conditions and other factors. If the functional capacity of the test is inadequate, there will be no colour reaction during the test, even if nitrate levels are particularly high. If the measurement result is below 1 mg\/l (ppm), add five drops of the reference solution “standard” to a new sample in order to verify the reliability of the test. If the colour changes to pink (2 mg\/l (ppm)) when you carry out the test again, then the reliability of the reagents is verified as good.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003eHow to correct unfavourable values\u003cbr\u003e\u003cspan\u003e\u003cbr\u003eIf the nitrite and\/or nitrate concentration in the water is too high, we recommend:\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003e\u003cspan\u003e• \u003cspan\u003eAssessing and, where necessary, reducing the feeding quantities or enriching the food with Tropic Marin®\u003ca href=\"https:\/\/www.tropic-marin.com\/ernaehrung\/de-lipovit-fr-lipovit-en-lipovit\/?lang=en\" target=\"_blank\" rel=\"\"\u003eLIPOVIT\u003c\/a\u003e \/ \u003ca href=\"https:\/\/www.tropic-marin.com\/ernaehrung\/lipo-garlic\/?lang=en\" target=\"_blank\" rel=\"\"\u003eLIPO-GARLIC\u003c\/a\u003e;\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan\u003e• Assessing and, where necessary, regulating the stocking rate;\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003e• Exchanging a proportion of the water on a regular basis;\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003e• \u003cspan\u003eUsing Tropic Marin® \u003ca href=\"https:\/\/www.tropic-marin.com\/control\/np-bacto-balance\/?lang=en\" target=\"_blank\" rel=\"\"\u003eNP-BACTO-BALANCE\u003c\/a\u003e and \/ or \u003ca href=\"https:\/\/www.tropic-marin.com\/control\/np-bacto-pellets\/?lang=en\" target=\"_blank\" rel=\"\"\u003eNP-BACTO-PELLETS\u003c\/a\u003e to reduce the nutritional level over the medium term.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003eShelf life and storage\u003cbr\u003e\u003cbr\u003e6 months after opening. Store in a cool, dark place.\u003cbr\u003e\u003cspan\u003e\u003cbr\u003eThe entire instruction manual as PDF file can be found here: \u003ca href=\"https:\/\/www.tropic-marin.com\/wp-content\/uploads\/2017\/01\/28360-ga-nitrite-nitrate-test-professional_11_2016.pdf\" target=\"_blank\" rel=\"\"\u003eNitrite\/Nitrate-Test Professional\u003c\/a\u003e\u003c\/span\u003e\n\u003c\/div\u003e","brand":"Tropic Marin","offers":[{"title":"Default Title","offer_id":40199851180167,"sku":"6310","price":28.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/tropic-marin-nitritenitrate-professional-test-kit-955065.jpg?v=1731257521"},{"product_id":"red-sea-phosphate-pro-comparator-test-kit","title":"Red Sea Phosphate Pro Comparator Test Kit","description":"Element : P-PO4\u003cbr\u003eAccuracy : 0.014 ppm\u003cbr\u003eRange : 0.014 - 1.6 ppm\u003cbr\u003eTest Type : Comparator\u003cbr\u003eNo of Test : 100\u003cbr\u003e\u003cbr\u003eAll Pro Test Kits come in a durable plastic housing and use optically clear, analytical lab grade glass test vials.\u003cbr\u003e\u003cbr\u003eUsed for testing of Phosphate in the aquarium. \u003cbr\u003eCan also be used as part of the Stage 2 - Algae Nutrient Control in the Red Sea Reef Care Program. The Algae Nutrient Control Stage provides a complete solution for testing and controlling nuisance algae and promote coral coloration. Also test for Nitrate with the Red Sea Nitrate Pro Test Kit. To control these NO3 and PO4 levels use the N:P-X treatment.\u003cbr\u003e\u003cbr\u003eThis products is part of the new Red Sea unique Reef Care Program (RCP). The Red Sea reef care program is the result of over 5 years research from Red Sea scientists resulting in unparralleled understanding of the requirements of coral aquariums. The Red Sea Reef Care Program provides a holistic solution to maintaining a flourishing coral reef aquarium. It even allows beginners to achieve stunning sps aquariums safely.","brand":"Red Sea","offers":[{"title":"Default Title","offer_id":40199872905351,"sku":"R21425","price":41.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/red-sea-phosphate-pro-comparator-test-kit-941099.jpg?v=1731257103"},{"product_id":"salifert-kh-alkalinity-profi-test-kit","title":"Salifert KH + Alkalinity Profi-Test Kit","description":"\u003cp\u003e• Calcium is not the only substance needed to form the skeletal material of corals and allow calcareous algae to grow. Carbonate and bicarbonate are also needed and these two substances can have a major effect on stabilising or buffering pH levels in the aquarium in the correct range of 8.1 to 8.4.\n\u003cbr\u003e• The total carbonate and bicarbonate concentration is also called alkalinity or carbonate hardness and for a stable system the alkalinity should not fluctuate by more than 5% from the optimum level of approx. 2.8 meq\/L i.e a maximum fluctuation of 0.14 meq\/L.\n\u003cbr\u003e• The Salifert test is sensitive enough to detect small changes in levels of alkalinity, measuring in steps of 0.1 meq\/L and demonstrating a very sharp colour change.\n\u003cbr\u003e• The Salifert KH + pH buffer additive makes correction of the alkalinity or carbonate hardness simple and does not upset the pH of the system\n\u003cbr\u003e• Sufficient for 100 to 200 tests\u003c\/p\u003e","brand":"Salifert","offers":[{"title":"Default Title","offer_id":40199878049927,"sku":"5188","price":7.71,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/salifert-kh-alkalinity-profi-test-kit-493244.jpg?v=1731257321"},{"product_id":"red-sea-magnesium-test-kit","title":"Red Sea Magnesium Test Kit","description":"Red Sea’s user-friendly Magnesium titration test provides a quick and reliable measurement of Magnesium in your aquarium to an accuracy of either 50ppm or 100ppm according to your needs. Kit includes easy to follow graphic instructions and conversion tables for immediate interpretation of results. \u003ch4\u003eRed Sea Magnesium Test Kit Includes 75 tests.\u003c\/h4\u003e","brand":"Red Sea","offers":[{"title":"Default Title","offer_id":40199924744327,"sku":"R21485","price":22.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/red-sea-magnesium-test-kit-863952.jpg?v=1731257089"},{"product_id":"red-sea-marine-care-test-kit","title":"Red Sea Marine Care Test Kit","description":"\u003cdiv\u003eEasy-to-use tests for the accurate monitoring of all of the important parameters during the biological maturation of marine and reef aquariums\u003c\/div\u003e\u003cdiv\u003eNH3\/NH4 | NO3 | NO2 | pH | KH\u003cbr\u003e\u003cbr\u003eRed Sea Marine Care Multi Test Kit is Complete multi-test pack including all of the tests necessary to monitor the biological maturation of new systems and for the ongoing maintenance and algae management of fish-only aquariums.  \u003cbr\u003e\u003cspan\u003e\u003cbr\u003eThe Marine Care Multi Test Kit includes the tests pH, KH, ammonia, nitrate and nitrite in a durable, chemical-resistant plastic box.\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\u003cul\u003e\n\u003c\/ul\u003e","brand":"Red Sea","offers":[{"title":"Default Title","offer_id":40199950041223,"sku":"R21525","price":57.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/red-sea-marine-care-test-kit-596227.jpg?v=1731257097"},{"product_id":"jbl-nh4-ammonium-test-set","title":"JBL ProAquaTest Ammonia NH4 Water Test Kit","description":"\u003cp class=\"dont-hide\"\u003e\u003csmall\u003eQuick test to determine ammonium\/ammonia content in freshwater\/marine water aquariums and in ponds\u003c\/small\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSimple and reliable monitoring of ammonium (NH4) and ammonia (NH3) in aquariums\/ponds. Checks the biological balance (bacterial activity) in freshwater and marine water\u003c\/li\u003e\n\u003cli\u003eLaboratory comparator system to compensate the inherent water colour: fill glass vials with sample water, add reagents to one vial, place vials in holder, read values off colour chart and table\u003c\/li\u003e\n\u003cli\u003eUse: when setting up a new freshwater aquarium: once a day. Initial setup with marine water: once a week. For use in case of fish diseases or fish deaths.\u003c\/li\u003e\n\u003cli\u003eYou will find detailed information and troubleshooting tips about water analysis on the JBL website in Essentials\/Aquarium or Pond\u003c\/li\u003e\n\u003cli\u003ePackage contents: 1 quick test, ammonium test NH4 for approx. 50 measurements. Incl. 3 reagents, 2 glass vials with screw caps, syringe, comparator block and colour scale. Reagent refill separately available\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eThe right water values are dependent on the fish stock and the plants in the aquarium\/pond. Even if the water looks clear it can be contaminated. With bad values diseases or algae can appear in the aquarium\/pond. To maintain a healthy aquarium\/pond with conditions close to nature it is important to check and adapt the water values regularly.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eFor each water analysis JBL provides water tests in the form of quick tests or colour change tests. These determine a certain value or several values in one go. With these water tests you can recognise algae problems and negative nitrate, nitrite, potassium, magnesium values etc.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eWhy test?\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eThe degradation or mineralisation process of all organic substances in the aquarium and pond follows these stages: proteins \u0026gt; ammonium \u0026gt; nitrite \u0026gt; nitrate. By measuring these stages conclusions can be drawn about the “functioning” of the systems aquarium and pond. If the ammonium or nitrite level is too high it can lead to disturbances of the bacterial balance. Ammonium is not usually measurable in a well-kept aquarium with an effective biological filter or in a properly set up garden pond. Ammonium is an important plant nutrient and normally non-toxic for fish. But depending on the pH value, ammonia, which is toxic for fish, can be formed from the ammonium ion.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eRecommended ammonium values:\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eFreshwater aquarium (community aquarium): \u0026lt; 0.25 mg\/l\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eLake Malawi\/Lake Tanganyika aquarium: \u0026lt; 0.25 mg\/l\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003ePlant aquarium with few fish (aquascaping): \u0026lt; 0.25 mg\/l\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eMarine aquarium: 0-0.25 mg\/l\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003ePond: \u0026lt;0.1 mg\/l\u003c\/span\u003e\u003c\/p\u003e","brand":"JBL","offers":[{"title":"Default Title","offer_id":40199956201607,"sku":"302348","price":13.89,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/files\/JBLNH4.jpg?v=1731258201"},{"product_id":"jbl-kh-test-set","title":"JBL ProAquaTest Carbonate Hardness KH Water Test Kit","description":"\u003cp class=\"dont-hide\"\u003e\u003csmall\u003eQuick test to determine the carbonate hardness (KH) in freshwater\/marine aquariums and ponds\u003c\/small\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSimple and reliable monitoring of the water values in aquariums and ponds. Determines the ideal carbonate hardness in fresh and marine water\u003c\/li\u003e\n\u003cli\u003eColour change test: fill plastic cuvette with sample water, add reagent drop by drop until colour changes from blue to yellow. Number of drops = level of carbonate hardness\u003c\/li\u003e\n\u003cli\u003eWhen to use: daily in the first week in newly set up aquariums, afterwards once a week\u003c\/li\u003e\n\u003cli\u003eYou will find detailed information and troubleshooting tips about water analysis on the JBL website in Essentials\/Aquarium or Pond\u003c\/li\u003e\n\u003cli\u003ePackage contents: 1 KH quick test, incl. one reagent and plastic cuvette. Reagent refill separately available\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eHealthy aquarium\/healthy pond with conditions close to nature\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eThe right water values are dependent on the fish stock and the plants in the aquarium\/pond. Even if the water looks clear it can be contaminated. With bad values diseases or algae can appear in the aquarium\/pond. To maintain a healthy aquarium\/pond with conditions close to nature it is important to check and adapt the water values regularly.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eFor each water analysis JBL provides water tests in the form of quick tests or colour change tests. These determine a certain value or several values in one go. With these water tests you can recognise algae problems and negative nitrate, nitrite, potassium, magnesium values etc.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eWhy test?\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eThe well-being of aquarium and pond dwellers and the healthy growth of aquatic plants depend to a large extent on the KH level being kept as constant as possible. The carbonate hardness is one of the most important water values since it keeps the pH level stable. The KH should never drop below 4 °dKH.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eJBL Online Laboratory\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eRegular control for a healthy aquarium\/pond with conditions close to nature. Enter your water values into the JBL Online Laboratory and get an in-depth analysis of your values within seconds.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eRecommended KH values:\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eFreshwater aquarium (community aquarium): 5-12 °dKH\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eLake Malawi\/Lake Tanganyika aquarium: 7-20 °dKH\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003ePlant aquarium with few fish (aquascaping): 3-8 °dKH\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eMarine aquarium: 7-10 °dKH\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003ePond: 7-10 °dKH\u003c\/span\u003e\u003c\/p\u003e","brand":"JBL","offers":[{"title":"Default Title","offer_id":40199958429831,"sku":"302330","price":7.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/files\/JBLKHTest.jpg?v=1731258201"},{"product_id":"salifert-ammonia-profi-test-kit","title":"Salifert Ammonia Profi-Test Kit","description":"\u003cp\u003e• Ammonia and ammonium should be rapidly converted by aerobic nitrification into nitrite and then nitrate and finally into nitrogen gas. If this does not happen then either the aquarium is not fully matured or there is a problem with the tank\\'s biological system, which can be caused by an excessive biological loading being placed on the system. \n\u003cbr\u003e• If the pH is too low then the cause may be a too low alkalinity and\/or a build up of carbon dioxide caused by insufficient aeration.\n\u003cbr\u003e• Sufficient for 50 tests\u003c\/p\u003e","brand":"Salifert","offers":[{"title":"Default Title","offer_id":40199959806087,"sku":"5196","price":9.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/salifert-ammonia-profi-test-kit-838292.jpg?v=1731257317"},{"product_id":"salifert-silicate-profi-test-kit","title":"Salifert Silicate Profi-Test Kit","description":"\u003cp\u003e• Silicate occurs in tap water or purified water when the reverse osmosis or de ionising unit is not functioning properly.\n\u003cbr\u003e• Silicate can result in diatom bloom and can block some essential trace elements such as vanadium and molybdenum. \n\u003cbr\u003e• The Salifert Test kit for silicate is very fast, sensitive and accurate, with two scales: an ultra low scale which is particularly useful for marine water and a high scale which is suitable for freshwater environments. \n\u003cbr\u003e• Sufficient for 60 tests\u003c\/p\u003e","brand":"Salifert","offers":[{"title":"Default Title","offer_id":40199959937159,"sku":"5192","price":9.74,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/salifert-silicate-profi-test-kit-651142.jpg?v=1731257329"},{"product_id":"salifert-ph-profi-test-kit","title":"Salifert pH Profi-Test Kit","description":"The pH value in a marine tank has a major impact on the growth of corals and calcareous algae and on many biological processes. The pH should not be allowed to fluctuate more than approx. 0.2 units during any 24 hour period and should preferably be kept above 8.2. \n• If the pH is too low then the cause may be a too low alkalinity and\/or a build up of carbon dioxide caused by insufficient aeration\n\u003cspan\u003e• A low pH can be corrected by improving aeration and by increasing the alkalinity using the \u003ca target=\"\" rel=\"\"\u003eSalifert KH + pH Buffer 250ml\u003c\/a\u003e.\u003c\/span\u003e\n• The Salifert Test Kit is sufficiently accurate to monitor minor pH fluctuations and is scaled from pH 7.4 - 8.7.\n• Sufficient for 50 tests - For marine water only!","brand":"Salifert","offers":[{"title":"Default Title","offer_id":40199960035463,"sku":"5189","price":6.25,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/salifert-ph-profi-test-kit-470995.jpg?v=1731257328"},{"product_id":"salifert-nitrite-profi-test-kit","title":"Salifert Nitrite Profi-Test Kit","description":"\u003cp\u003e• In a properly cycled aquarium, nitrite is converted to nitrate and then, if there are areas deprived of oxygen such as in live rock and other filter materials, this nitrate is converted back to nitrite and then transformed into harmless nitrogen gas.\n\u003cbr\u003e• If this cycle breaks down then nitrites, which are extremely toxic to fish and invertebrates, can form in high concentration.\n\u003cbr\u003e• Many nitrite test kits suffer from interference caused by amines e.g naturally occurring and essential amino acids. This can result in a too low measured value, especially when the nitrite concentration is relatively low.\n\u003cbr\u003e• Because of its unique formulation, the Salifert Test Kit does not suffer from amine interference, and offers full colour development within one minute. Also, the colour is very intense making the detection of even minute traces of nitrite easy.\n\u003cbr\u003e• The test kit has two different scales: an ultra-low scale for nitrite-nitrogen which ranges from 0.002 - 0.12 mg\/L, and a medium scale for nitrite-nitrogen which ranges from 0.02 - 1.2 mg\/L.\n\u003cbr\u003e• Sufficient for 50 tests\u003c\/p\u003e","brand":"Salifert","offers":[{"title":"Default Title","offer_id":40199961018503,"sku":"5184","price":7.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/salifert-nitrite-profi-test-kit-436004.jpg?v=1731257324"},{"product_id":"salifert-iodine-profi-test-kit","title":"Salifert Iodine Profi-Test Kit","description":"Iodine is present in natural sea water in a very low concentration (0.6 mg\/L or 0.06 ppm) and this iodine occurs as several different species including iodide, iodate, molecular iodine and hypoiodite.\n• There is a misconception among many hobbyists that iodide predominates in natural sea water but in fact, it is iodate which is the predominant element.\n• Test kits which are not capable of detecting iodate are not suitable for aquarium use, since in a properly functioning tank most of the iodide will be transferred to iodate and any test kits not able to detect iodate will give a false, low iodine reading.\n• Iodine test kits should be capable of measuring all forms of naturally occurring iodine. The Salifert Test Kit is the only one offering this feature, measuring all naturally occurring iodine compounds and giving a reading of total iodine concentration.\n• Unlike many other test kits, the Salifert Iodine Profi-Test is free from interference from other elements found in saltwater, which means the results obtained are very accurate. \n• Colour remains stable for several hours. \n• Scale goes from 0.01 - 0.15ppm and optimum level is 0.06 mg\/L.\n\u003cspan\u003e\u003cspan\u003e• \u003ca target=\"\" rel=\"\"\u003eSalifert Natural Iodine 250ml\u003c\/a\u003e is highly concentrated and contains a large proportion of iodate and some iodide in the same balance as natural sea water. \u003c\/span\u003e\n• Can provide up to 40 tests\n                                                            \u003c\/span\u003e","brand":"Salifert","offers":[{"title":"Default Title","offer_id":40199961051271,"sku":"5183","price":19.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/salifert-iodine-profi-test-kit-579610.jpg?v=1731257320"},{"product_id":"salifert-phosphate-profi-test-kit","title":"Salifert Phosphate Profi-Test Kit","description":"\u003cp\u003eIf phosphate is present in too high a concentration there may be an increase in growth of undesirable algae and if the phosphate level is higher than 0.04 mg\/L the growth rate of corals and calcareous algae may decrease by as much as 90%.\n\u003cbr\u003e• Washing fish food (a rich source of phosphates) after thawing can significantly reduce the input of phosphate, and using a high grade, phosphate free activated carbon can also help to keep phosphate levels as low as possible.\n\u003cbr\u003e• The Salifert Phosphate test kit detects, in less than 5 seconds, the level of phosphate present.\n\u003cbr\u003e• There are two different ranges within the kit: a low range for phosphate-phosphor from 0.01 - 1 mg\/L and a medium range for phosphate-phosphor from 0.02 - 2 mg\/L.\n\u003cbr\u003e• Sufficient for 60 tests\u003c\/p\u003e","brand":"Salifert","offers":[{"title":"Default Title","offer_id":40199961084039,"sku":"5182","price":9.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/salifert-phosphate-profi-test-kit-947659.jpg?v=1731257327"},{"product_id":"salifert-strontium-profi-test-kit","title":"Salifert Strontium Profi-Test Kit","description":"In a marine aquarium strontium plays an important role in accelerating the growth of coral and calcareous algae and natural sea water contains approx. 7 - 9 mg\/L strontium. \n• Strontium is very difficult to test for, but if there is found to be a depletion of calcium in the aquarium then strontium levels are likely to be very low as well. \n• It is advisable to maintain a strontium concentration of between 5 and 20 mg\/L. \n• Salifert was the first to introduce a strontium test kit and this test measures both ionically free and moderately complex strontium in increments of 5 mg\/L. \n\u003cspan\u003e• Salifert produce both a \u003ca target=\"\" rel=\"\"\u003eSalifert Natural Strontium 250ml\u003c\/a\u003e for when corrective measures are needed. \u003c\/span\u003e\n• Sufficient for up to 40 tests - for marine use only","brand":"Salifert","offers":[{"title":"Default Title","offer_id":40199961116807,"sku":"5181","price":19.99,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/salifert-strontium-profi-test-kit-946701.jpg?v=1731257328"},{"product_id":"hanna-instruments-marine-ammonia-hi784-25-reagents-25-tests","title":"Hanna Instruments Marine Ammonia HI784-25 Reagents - 25 Tests","description":"\u003cp\u003eHI-784-25 Marine Ammonia Reagents for the Hanna HI-784 Checker\u003c\/p\u003e\n\u003cp\u003eContents includes:\u003c\/p\u003e\n\u003cp\u003eLiquid Reagent A (Suitable for x25 tests)\u003c\/p\u003e\n\u003cp\u003ePowder Reagent B \u003cmeta charset=\"utf-8\"\u003e(Suitable for x25 tests)\u003c\/p\u003e\n\u003cp\u003ePowder Reagent C \u003cmeta charset=\"utf-8\"\u003e(Suitable for x25 tests)\u003c\/p\u003e\n\u003cp\u003e1x 1mL syringe with tip\u003c\/p\u003e\n\u003cp\u003e1x Plastic refilling pipette\u003c\/p\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40200335229063,"sku":"HI784-25","price":20.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/files\/784Reagent.jpg?v=1741254411"},{"product_id":"hanna-instruments-hi-780-25-marine-ph-reagents-100-tests","title":"Hanna Instruments HI-780-25 Marine pH Reagents - 100 Tests","description":"\u003cspan\u003eThe HI-780-25 is the replacement reagents for the HI-780 Marine pH Checker® HC. These high-quality reagents are clearly marked with the lot number and expiry date on the dropper bottle for traceability. Contains approximately 100 tests.\u003c\/span\u003e\u003cbr\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40200335261831,"sku":"HI-780-25","price":24.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/hanna-instruments-hi-780-25-marine-ph-reagents-100-tests-930731.jpg?v=1731256499"},{"product_id":"hanna-instruments-marine-magnesium-reagents-hi-783-25-25-tests","title":"Hanna Instruments Marine Magnesium Reagents HI-783-25 - 25 Tests","description":"\u003cp\u003eHI-783-25 Marine Magnesium reagents, 25 tests, for use with the HI-783 Marine Magnesium Handheld Colorimeter Checker.\u003c\/p\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40200335294599,"sku":"HI783-25","price":18.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/hanna-instruments-marine-magnesium-reagents-hi-783-25-25-tests-600011.jpg?v=1731256508"},{"product_id":"hanna-marine-ph-pocket-checker","title":"Hanna Pocket Checker for Testing pH - Marine","description":"Over the years however, acidification tendency is to decrease 0.1 to 0.2 pH units\/century. Acidification is a consequence of carbon dioxide (CO2) absorption in seawaters and oceans. Carbon dioxide reacts with seawater to produce carbonic acid (H2CO2).\u003cbr\u003e\u003cbr\u003epH modifications affect marine life growth, reproduction, and communication. Hydrogen ions have a tendency to bond with carbonate to form bicarbonate. The greater attraction to carbonate over calcium can adversely affect skeleton building and can limit coral growth\u003cspan\u003e-Ideal for aquariums and marine biology\u003cbr\u003e\u003cbr\u003e-Easier to use and more accurate than chemical test kits\u003cbr\u003e-Small size, big convenience\u003cbr\u003e\u003c\/span\u003e\u003cbr\u003eSpecifications\u003cbr\u003e\u003cbr\u003eRange: 6.3 to 8.6 pH\u003cbr\u003eResolution: 0.1pH\u003cbr\u003eAccuracy @ 25°C\/77°F: ±0.2 pH\u003cbr\u003eLight Source LED @ 525 nm\u003cbr\u003eLight Detector: silicon photocell\u003cbr\u003eMethod: colorimetric adaptation of phenol red method\u003cbr\u003eAuto-off after ten minutes of non-use\u003cbr\u003eEnvironment 0 to 50°C (32 to 122°F); RH max 95% non-condensing\u003cbr\u003eBattery Type (1) 1.5V AAA Ordering Information\u003cbr\u003eHI-780 Checker HC is supplied with sample cuvettes with caps (2), pH reagent starter set, battery, and instructions","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40200335327367,"sku":"HI-780","price":79.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/hanna-marine-ph-pocket-checker-494121.jpg?v=1731256512"},{"product_id":"hanna-marine-ammonia-pocket-checker","title":"Hanna Pocket Checker for Testing Ammonia - Marine","description":"\u003cspan\u003eHI784 Marine Ammonia handheld checker is designed to determine the concentration of ammonia in saltwater Aquariums\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003eEasier to use and more accurate than chemical test kits\u003cbr\u003eDedicated to a single parameter\u003cbr\u003eSmall size, big convenience\u003cbr\u003e\u003cbr\u003eIdeal for: Aquariums, Environmental, Aquaculture, Water Quality\u003cbr\u003e\u003c\/span\u003e\u003cbr\u003eSupplied with\u003cbr\u003e\u003cbr\u003e\u003cspan\u003e2 sample cuvettes\u003cbr\u003eCuvette cap\u003cbr\u003eStarter pack of reagents x 6 tests (re-ordering information: HI-784-25 x 25 tests)\u003cbr\u003e1 x 1.5 AAA battery\u003cbr\u003e\u003cbr\u003eInstructions\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003eRange 0.00 to 2.50 ppm (mg\/L) NH3\u003cbr\u003eResolution 0.01 ppm (mg\/L)\u003cbr\u003eAccuracy ±0.05 ppm ±5% of reading @ 25 °C (77 °F)\u003c\/span\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40200335720583,"sku":"HI-784","price":79.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/hanna-marine-ammonia-pocket-checker-362920.jpg?v=1731256507"},{"product_id":"hanna-marine-magnesium-pocket-checker","title":"Hanna Pocket Checker for Testing Magnesium - Marine","description":"VERSION 2\u003cbr\u003e\u003cbr\u003eHI783 Marine Magnesium handheld checker is designed to determine the concentration of magnesium in saltwater aquariums.\u003cbr\u003eHI783 features a single-button operation system and is easy to use.\u003cbr\u003e\u003cspan\u003eThe large LCD is easy to read and the auto shut-off feature assures the battery will not be drained.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003eSpecifications\u003cbr\u003eRange 1000 to 1800 ppm Magnesium\u003cbr\u003eResolution 5 ppm\u003cbr\u003eAccuracy ±5% of reading @ 25 °C (77 °F)\u003cbr\u003eLight source Light Emitting Diode @ 610 nm\u003cbr\u003eLight detector Silicon photocell\u003cbr\u003eMethod\u003cbr\u003eAdaptation of the colorimetric EDTA method using\u003cbr\u003ecalmagite indicator. The reaction between magnesium and\u003cbr\u003ethe reagents causes a blue to violet tint in the sample.\u003cbr\u003eEnvironment\u003cbr\u003e0 to 50 °C (32 to 122 °F); max. 95% RH non-condensing\u003cbr\u003ePrepared sample cuvette (sample plus reagents) must be\u003cbr\u003e18 to 28 °C (64 to 82 °F).*\u003cbr\u003eBattery type 1.5V AAA Alkaline\u003cbr\u003eAuto shut-off After 10 minutes of non-use\u003cbr\u003eDimensions 86.0 x 61.0 x 37.5 mm (3.4 x 2.4 x 1.5”)\u003cbr\u003eWeight 64 g (2.3 oz)\u003cbr\u003eInterferences – Calcium below 300 ppm and above 500ppm\u003c\/span\u003e \u003cbr\u003e\u003cbr\u003e\u003cdiv\u003e\u003cdiv\u003e\u003cdiv\u003e\u003cdiv\u003eEach HI783 is delivered in a case with custom insert and is supplied with:\u003cbr\u003e\u003cspan\u003e\u003cbr\u003e• Sample cuvette and cap (2 pcs.)\u003cbr\u003e• Marine Magnesium reagent starter kit (reagents for 25 tests) • 1 mL graduated syringe and tip (1 pc.)\u003cbr\u003e• 5 mL syringe and tip with black printing (1 pc.)\u003cbr\u003e• 5 mL syringe and tip with blue printing (1 pc.)\u003cbr\u003e• 1.5V AAA Alkaline battery (1 pc.)\u003cbr\u003e• Instruction manual\u003cbr\u003e• Quick-reference guide\u003c\/span\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40200336507015,"sku":"HI-783","price":79.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/hanna-marine-magnesium-pocket-checker-416267.jpg?v=1731256508"},{"product_id":"api-ammonia-test-strips-25-strips","title":"API Ammonia Test Strips - 25 Strips","description":"\u003cspan\u003eUse the API® AMMONIA TEST STRIPS as the quick and accurate way to test for the presence of ammonia. Kit reads 0 to 6 ppm of ammonia, and alerts you to unsafe ammonia levels before they can harm fish or result in fish loss.\u003cbr\u003e\u003c\/span\u003e\u003cul\u003e\u003cli\u003eDo API AMMONIA TEST STRIPS test only for Ammonia? How accurate are they in reflecting high ammonia levels?\u003c\/li\u003e\u003c\/ul\u003eYes, API AMMONIA TEST STRIPS test solely for ammonia in your aquarium water. Test strips are extremely accurate in showing high ammonia levels – simply compare your results to the precise colour charts that come with the product, and take the appropriate actions to correct unsafe parameters for your fish.\u003cul\u003e\u003cli\u003eCan I use API AMMONIA TEST STRIPS in any aquarium?\u003c\/li\u003e\u003c\/ul\u003eYes, these test strips may be used in both fresh and saltwater aquariums.","brand":"API","offers":[{"title":"Default Title","offer_id":40200336572551,"sku":"025193","price":10.59,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/api-ammonia-test-strips-25-strips-813948.jpg?v=1731255829"},{"product_id":"api-liquid-kh-test-kit","title":"API Liquid KH Test Kit","description":"The API® KH TEST KIT tests fresh or saltwater aquariums for carbonate hardness (KH), and helps monitor water quality and prevent invisible water problems that can be harmful to fish and plants. Carbonate hardness stabilizes aquarium pH, and can be used to determine the proper dose of pH buffers.\u003cbr\u003e\u003cspan\u003e\u003cbr\u003eSizes\u003cbr\u003e\u003cbr\u003eContains 1 test bottle, easy-to-ready instructions, glass test tube and colour chart\u003c\/span\u003e","brand":"API","offers":[{"title":"Default Title","offer_id":40200336670855,"sku":"025168","price":8.49,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/api-liquid-kh-test-kit-141081.jpg?v=1731255816"},{"product_id":"api-liquid-high-range-ph-test-kit","title":"API Liquid High Range pH Test Kit","description":"The API® HIGH RANGE pH TEST KIT measures pH changes in marine aquariums, aquariums with African Cichlids, and very alkaline tap water. The API HIGH RANGE pH TEST KIT reads the pH of water within the high range of 7.4 – 8.8, and includes one bottle of test solution and one test tube.\u003cbr\u003e\u003cspan\u003e\u003cbr\u003eSizes\u003cbr\u003e\u003cbr\u003eContains 160 tests and includes 1 test bottle, easy-to-ready instructions, glass test tube and colour chart\u003c\/span\u003e","brand":"API","offers":[{"title":"Default Title","offer_id":40200336769159,"sku":"025160","price":5.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/api-liquid-high-range-ph-test-kit-558741.jpg?v=1731255817"},{"product_id":"api-5-in-1-test-strips-25-strips","title":"API 5 in 1 Test Strips - 25 Strips","description":"\u003cspan\u003eAPI® 5 in 1 TEST STRIPS are the quick and easy way to test the 5 most important aquarium water parameters – pH, KH, GH, nitrate, and nitrite – in one easy step. Simply dip one test strip directly into the aquarium, and compare the colours on the strip to the colour card provided to help prevent invisible water problems that can be harmful to fish. Each kit includes detailed information on how to interpret the test results and correct unsafe water conditions.\u003cbr\u003e\u003c\/span\u003e\u003cul\u003e\u003cli\u003eHow do API 5-IN-1 TEST STRIPS work?\u003c\/li\u003e\u003c\/ul\u003eTest strips are a fast and easy way to test your aquarium water parameters! Simply dip a strip into your water and swirl two times, then remove the strip and hold flat to evaluate colour changes. Compare these colours to the colour chart included with API 5-IN-1 TEST STRIPS, and treat your water accordingly.\u003cul\u003e\u003cli\u003eHow accurate are API 5-IN-1 TEST STRIPS?\u003c\/li\u003e\u003c\/ul\u003eAPI 5-IN-1 TEST STRIPS are highly accurate in measuring water parameters when used as directed.","brand":"API","offers":[{"title":"Default Title","offer_id":40200336801927,"sku":"025190","price":8.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/api-5-in-1-test-strips-25-strips-369758.jpg?v=1731255825"},{"product_id":"api-liquid-copper-test-kit","title":"Api Liquid Copper Test Kit","description":"Copper – a treatment for many parasitic infections – must be monitored in an aquarium or a pond. The copper level can drop too low for the treatment to be effective, or can increase to a point that is detrimental to fish health. Copper is likely even present in your tap water.\u003cbr\u003e\u003cspan\u003eThe API® COPPER TEST KIT allows you to easily and accurately monitor copper levels to maintain copper-based fish treatments at therapeutic levels, and tests copper levels from 0 to 4 ppm. The kit measures both free and chelated copper, and is for use in fresh and saltwater aquariums, or with ponds.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003eContains 90 test and includes 1 test bottle, easy-to-ready instructions, glass test tube and colour chart\u003cbr\u003e\u003cul\u003e\u003cli\u003eWhen should I test for copper in my aquarium?\u003c\/li\u003e\u003c\/ul\u003eUse the API COPPER TEST KIT to ensure copper levels are healthy for plant photosynthesis and to prevent anemia in fish.\u003cul\u003e\u003cli\u003eWhat type of aquarium should API COPPER TEST KIT be used with?\u003c\/li\u003e\u003c\/ul\u003eAPI COPPER TEST KIT can be used to test for copper in both freshwater and saltwater aquariums.","brand":"API","offers":[{"title":"Default Title","offer_id":40200336867463,"sku":"025170","price":9.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/api-liquid-copper-test-kit-393558.jpg?v=1731255817"},{"product_id":"hanna-reef-kit","title":"Hanna Reef Kit","description":"\u003cspan\u003eMake sure your marine tank or even a natural reef is in perfect health with the Hanna Reef Kit\u003cbr\u003e\u003c\/span\u003e\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\u003cbr\u003e\u003cbr\u003eMake sure your marine tank or even a natural reef is in perfect health with the Hanna Reef Kit.This great professional kit includes:\u003cbr\u003e\u003cbr\u003eHI-772 Seawater\/Marine Alkaline Checker®HC(dKh)\u003cbr\u003eHI-758 Marine Calcium Checker® HC\u003cbr\u003eHI-774 Marine Phosphate ULR Checker® HC\u003cbr\u003eHI-98319 Marine Salinity Tester\u003cbr\u003eHI-774-25 Marine Phosphate ULR Reagents x 25\u003cbr\u003eHI-70024P Salinity Calibration x 25 (35.00ppt @ 25?C)\u003cbr\u003eHI-70436M Distilled Water 230ml\u003cbr\u003e\u003cbr\u003e\u003cdiv\u003eAbout the testers\u003cbr\u003e\u003cbr\u003e\n\u003c\/div\u003e\u003cdiv\u003eHI-772 Seawater\/Marine Alkalinity (dKH) Colorimeter - Checker®HC\u003c\/div\u003eIdeal for salt water aquariums and coral reef tanks.Designed exclusively for saltwater aquariums, the HI-772 checker offers a quick, easy and highly accurate method of measuring alkalinity in degrees of calcium hardness, dKH.Alkalinity helps to maintain a stable pH, a vital factor for most aquatic life. Corals also need an adequate level of alkalinity in order to support healthy growth: if levels are too low, corals cannot precipitate and form their skeletons; if levels fluctuate too much or too quickly, growth can become impaired.\u003cspan\u003eThe more precise and stable the levels, the better the results. With regular, precise monitoring, fluctuations in levels can be quickly corrected, giving your corals the best chance of success.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003cdiv\u003eHI-98319 Marine Waterproof Salinity Tester\u003c\/div\u003eThe HI-98319 waterproof salinity and temperature tester is perfect for any saltwater aquarium. A more accurate alternative to refractometers, this tester uses conductivity to determine salinity levels of natural and artificial seawater. Ideal for testing salinity in salt water aquariums, it is quick and easy to use and provides digital readout of both salinity and temperature.Salinity results are displayed in either parts per thousand (ppt), Practical Salinity Units (PSU), or Specific Gravity (SG). \u003cspan\u003eOur marine salinity tester is supplied complete with batteries and solutions allowing you to start measuring right away. Also displays temperature.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003cdiv\u003eHI-758 Marine Calcium Handheld Colorimeter - Checker®HC\u003c\/div\u003eIdeal for salt water aquariums and coral reef tanks.Designed to measure calcium in reef tanks, the Hanna Calcium Checker is perfect for corals and marine life.\u003cbr\u003e\u003cbr\u003e\u003cdiv\u003eHI-774 Marine Phosphate ULR Checker HC colorimeter\u003c\/div\u003eThe HI-774 Ultra Low Range Phosphate Checker® HC (Handheld Colorimeter) provides a simple, accurate and cost effective way to measure phosphate from 0.00 to 0.90 ppm.\u003cspan\u003ePhosphate is an important parameter to measure in aquaculture and aquariums. Levels that are too high can lead to extensive algae growth, depleted dissolved oxygen levels, and ultimately can be fatal to many types of fish and aquatic life.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003cdiv\u003eHI-774-25 Marine Phosphate ULR Reagents – ascorbic acid x 25.\u003c\/div\u003e\u003cspan\u003eThese reagents are designed to be used with samples that have an expected range of 0.00 to 0.90 ppm phosphate.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003cdiv\u003eHI-70436 Distilled Water 3.75L\u003c\/div\u003eHI-70436 De-ionised water, 3.75 L, for your research needs.\u003cbr\u003eAir-tight seal to ensure the quality of the solution\u003cbr\u003e\u003cbr\u003e\u003cdiv\u003eHI-70024P Salinity Calibration (35.00ppt @ 25?C) 25 x 20ml\u003c\/div\u003e\u003cspan\u003eHI-70024p is a premium quality 35.00 ppt marine salinity calibration solution for seawater salinity in 25 x 20ml sachets.\u003cbr\u003e\u003c\/span\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40200337850503,"sku":"HI-REEFKIT","price":406.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/hanna-reef-kit-742189.jpg?v=1731256514"},{"product_id":"hanna-hi-97105c-marine-master-multiparameter-kit","title":"Hanna HI-97105C Marine Master Multiparameter Kit","description":"\u003cdiv class=\"product__description_short\" id=\"product-description-short\"\u003e\n\u003cp\u003eThe HI-97105C Hanna Marine Master Photometer provides a multiparameter solution for accurately measuring the water in saltwater aquariums. This fish tank photometer measures vital parameters that provide insight into the quality of water, which is key for maintaining proper aquarium maintenance and care. Marine pH, alkalinity, ammonia, calcium, magnesium, LR and HR nitrate, ULR nitrite and ULR phosphate can all be measured with this multipurpose photometer. \u003c\/p\u003e\n\u003cp\u003eThis Marine Master Multiparameter Photometer is contained in an easy-to-carry hard-wearing case, including several reagent starter kits covering the most vital parameters plus accessories for convenient, reliable measurement.\u003c\/p\u003e\n\u003cp\u003eMeasures: Marine pH, Alkalinity, Ammonia, Calcium, Magnesium, Nitrate LR, Nitrate HR, Nitrite ULR, Phosphate ULR.\u003c\/p\u003e\n\u003cp\u003eEach HI-97105C is supplied with:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSample cuvette (2 pcs.)\u003c\/li\u003e\n\u003cli\u003eSample cuvette cap (2 pcs.)\u003c\/li\u003e\n\u003cli\u003eMarine pH reagent, 30 mL dropper\u003c\/li\u003e\n\u003cli\u003eMarine Alkalinity reagent, 30 mL\u003c\/li\u003e\n\u003cli\u003eMarine Calcium reagents starter kit\u003c\/li\u003e\n\u003cli\u003eMarine Nitrate reagents High Range starter kit\u003c\/li\u003e\n\u003cli\u003eMarine Nitrite reagents ULR starter kit\u003c\/li\u003e\n\u003cli\u003eMarine Phosphate reagents Ultra Low Range starter kit\u003c\/li\u003e\n\u003cli\u003e1 mL graduated syringe with tip (2 pcs.)\u003c\/li\u003e\n\u003cli\u003eMini pipette with tip (1 pc.)\u003c\/li\u003e\n\u003cli\u003e3 mL Pasteur pipette (2 pcs.)\u003c\/li\u003e\n\u003cli\u003e1.5V AA Alkaline batteries (3 pcs.)\u003c\/li\u003e\n\u003cli\u003eCloth for wiping cuvettes\u003c\/li\u003e\n\u003cli\u003eScissors\u003c\/li\u003e\n\u003cli\u003eInstrument quality certificate\u003c\/li\u003e\n\u003cli\u003eInstruction manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cem\u003e(Please note: not all reagents and the Cal Check standard are included in this kit, so check your testing requirements are covered when ordering. See specification table to choose further reagents. Additional costs apply.)\u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003eAbout the photometer\u003c\/h3\u003e\n\u003cp\u003eThe HI-97105 is designed to accurately determine pH, Alkalinity, Calcium, Nitrate, Nitrite, and Phosphate levels in aquariums and marine biology applications. The HI-97105 Marine Master Photometer combines accuracy and ease of use in a simple, portable design.\u003c\/p\u003e\n\u003cp\u003eThe advanced optical system provides lab-quality accuracy, while its user-friendly design is easy for any aquarium user, making it the perfect photometer for your water quality testing needs.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eNo warm up time needed before taking a measurement.\u003c\/li\u003e\n\u003cli\u003eTutorial mode for easy step-by-step instructions\u003c\/li\u003e\n\u003cli\u003eCAL Check\u003csup\u003eTM\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003efor performance verification and calibration\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eBetter Features for Better Testing\u003c\/h3\u003e\n\u003cp\u003eLet your photometer guide you through setup, calibration, and testing with on-screen tutorials and animations, so you always know the next step. Simply access Tutorial Mode at any stage in the setup or measurement process with the dedicated help key.\u003c\/p\u003e\n\u003cp\u003eThe auto-off feature prolongs battery life for peace-of-mind and energy savings if the meter is accidentally left on.\u003c\/p\u003e\n\u003cp\u003eWhen the battery level is below 10%, a warning symbol will blink to indicate low battery condition. When low battery power may affect your results, the meter will shut down to avoid erroneous readings caused by low battery level.\u003c\/p\u003e\n\u003ch3\u003eData Logging\u003c\/h3\u003e\n\u003cp\u003eMissed a measurement? No need to worry because your photometer will automatically log the last 50 measurements. The results can be viewed instantly using the Log Recall Menu.\u003c\/p\u003e\n\u003ch3\u003eCAL Check\u003csup\u003eTM\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003eValidation\u003c\/h3\u003e\n\u003cp\u003eHanna’s exclusive CAL Check\u003csup\u003eTM\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003efeature provides a stress-free, straightforward way to ensure your photometer is working properly. Simply insert the certified CAL Check\u003csup\u003eTM\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003estandards and let your meter guide you through validation. If your photometer is out of specification for any reason, simply calibrate to your standard. \u003c\/p\u003e\n\u003ch3\u003eAdvanced Optical System\u003c\/h3\u003e\n\u003cp\u003eA Light Emitting Diode (LED) provides more light while using less power, and a narrow band interference filter results in more accurate and repeatable readings.\u003c\/p\u003e\n\u003ch3\u003eBuilt Better\u003c\/h3\u003e\n\u003cp\u003eDesigned to withstand the knocks, drops, and spills of real life, the new IP67 body ensures top performance in any environment. Internal optics are sealed from outside dust, dirt, and water. In addition, it floats, just in case you drop your meter in water. This photometer uses an exclusive positive locking system to ensure that the cuvettes are placed into the holder in the same position for accurate readings every time.\u003c\/p\u003e\n\u003ch3\u003ePortable Design\u003c\/h3\u003e\n\u003cp\u003eMade to fit comfortably in your hand for on-the-go testing or sit on a table for benchtop use, a backlit LCD display provides at-a-glance readings from any angle - day or night. The supplied AA batteries provide life for more than 800 measurements.\u003c\/p\u003e\n\u003cp\u003eWe believe that buying a meter should be simple. Your HI-97105 photometer has many of the necessary accessories needed for successful measurements.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product-features product__features\"\u003e\u003cbr\u003e\u003c\/div\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40200337916039,"sku":"HI-97105C","price":503.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/hanna-hi-97105c-marine-master-multiparameter-kit-377424.jpg?v=1731256499"},{"product_id":"hanna-marine-master-multiparameter-photometer","title":"Hanna Marine Master Multiparameter Photometer","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003eThe HI-97105 is designed to accurately determine all Marine pH, Ammonia, Alkalinity, Calcium, Magnesium, Nitrate LR \u0026amp; HR, Nitrite ULR, and Phosphate ULR levels in aquariums and marine biology applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe advanced optical system provides lab-quality accuracy, while its user-friendly design is easy for any aquarium user, making it the perfect photometer for your water quality testing needs.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eNo warm-up time needed before taking a measurement.\u003c\/li\u003e\n\u003cli\u003eTutorial mode for easy step-by-step instructions\u003c\/li\u003e\n\u003cli\u003eCAL Check\u003csup\u003eTM\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003efor performance verification and calibration\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eBetter Features for Better Testing\u003c\/h3\u003e\n\u003cp\u003eLet your photometer guide you through setup, calibration, and testing with on-screen tutorials and animations, so you always know the next step. Simply access Tutorial Mode at any stage in the setup or measurement process with the dedicated help key.\u003c\/p\u003e\n\u003cp\u003eThe auto-off feature prolongs battery life for peace of mind and energy savings if the meter is accidentally left on.\u003c\/p\u003e\n\u003cp\u003eWhen the battery level is below 10%, a warning symbol will blink to indicate a low battery condition. When low battery power may affect your results, the meter will shut down to avoid erroneous readings caused by a low battery level.\u003c\/p\u003e\n\u003ch3\u003eData Logging\u003c\/h3\u003e\n\u003cp\u003eMissed a measurement? No need to worry because your photometer will automatically log the last 50 measurements. The results can be viewed instantly using the Log Recall Menu.\u003c\/p\u003e\n\u003ch3\u003eCAL Check\u003csup\u003eTM\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003eValidation\u003c\/h3\u003e\n\u003cp\u003eHanna’s exclusive CAL CheckTM feature provides a stress-free, straightforward way to ensure your photometer is working properly. Simply insert the certified CAL Check\u003csup\u003eTM\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003estandards and let your meter guide you through validation. If your photometer is out of specification for any reason, simply calibrate to your standard.\u003c\/p\u003e\n\u003ch3\u003eAdvanced Optical System\u003c\/h3\u003e\n\u003cp\u003eA Light Emitting Diode (LED) provides more light while using less power, and a narrow band interference filter results in more accurate and repeatable readings.\u003c\/p\u003e\n\u003ch3\u003eBuilt Better\u003c\/h3\u003e\n\u003cp\u003eDesigned to withstand the knocks, drops, and spills of real life, the new IP67 body ensures top performance in any environment. Internal optics are sealed from outside dust, dirt, and water. In addition, it floats, just in case you drop your meter in water. This photometer uses an exclusive positive locking system to ensure that the cuvettes are placed into the holder in the same position for accurate readings every time.\u003c\/p\u003e\n\u003ch3\u003ePortable Design\u003c\/h3\u003e\n\u003cp\u003eMade to fit comfortably in your hand for on-the-go testing or sit on a table for benchtop use, a backlit LCD display provides at-a-glance readings from any angle - day or night. The supplied AA batteries provide life for more than 800 measurements.\u003c\/p\u003e\n\u003cp\u003eWe believe that buying a meter should be simple. Your HI-97105 photometer has many of the necessary accessories needed for successful measurements.\u003c\/p\u003e\n\u003cp\u003eEach\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eHI-97105\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis supplied with:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSample cuvette (2 pcs.)\u003c\/li\u003e\n\u003cli\u003eSample cap (2 pcs.)\u003c\/li\u003e\n\u003cli\u003ePlastic stopper (2 pcs.)\u003c\/li\u003e\n\u003cli\u003eAlkaline batteries: 1.5V AA (3 pcs.)\u003c\/li\u003e\n\u003cli\u003eInstruction manual\u003c\/li\u003e\n\u003cli\u003eMeter quality certificate\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e(Please Note: this version is not supplied with any reagents, these are to be purchased separately.)\u003c\/strong\u003e\u003c\/p\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40200337948807,"sku":"HI 97105","price":311.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/hanna-marine-master-multiparameter-photometer-438715.jpg?v=1731256509"},{"product_id":"hanna-instruments-ph-7-01-buffer-sachet-20ml","title":"Hanna Instruments pH 7.01 Buffer Sachet 20ml","description":"\u003cp\u003eHanna Instruments pH 7.01 Buffer Sachet 20ml\u003c\/p\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40200339685511,"sku":"30858","price":2.49,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/hanna-instruments-ph-701-buffer-sachet-20ml-373322.jpg?v=1731256504"},{"product_id":"hanna-instruments-ph-7-01-buffer-sachets-10-x-20ml","title":"Hanna Instruments pH 7.01 Buffer Sachets 10 x 20ml","description":"\u003cp\u003eThe HI-77700P is a pH buffer kit with 10 x 20ml sachets of pH 7.01\u003c\/p\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40200339783815,"sku":"HI-77700P","price":19.56,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/hanna-instruments-ph-701-buffer-sachets-10-x-20ml-532855.jpg?v=1731256505"},{"product_id":"hanna-instruments-ph-10-01-buffer-sachet-20ml","title":"Hanna Instruments pH 10.01 Buffer Sachet 20ml","description":"\u003cspan\u003eThe pH 10.01 buffer solution in quick and easy to use 20ml sachets is the most popular buffer used before analysing basic samples. Ideal for those requiring an accurate alkaline reading, particularly suitable for those working in water purification plants, the food industry, aquatics, and Hydroponics, and in any environments where the pH is expected to be alkaline. Hanna Microprocessor pH meters can be calibrated at pH9.18 and pH10.01.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003eThe single dose sachets are really handy with each sealed sachet holding just the right amount of solution. Each time a meter or electrode is calibrated using the Hanna sachets, it is like using a newly opened bottle of solution!\u003cbr\u003e\u003c\/span\u003e\u003cbr\u003eHanna buffer solutions are prepared, ready-to-use, according to precise formulas and standardised in accordance with the National Institute of Standards and Technology (NIST) to ensure quality and accuracy. All solutions show a batch number, an expiry date, and the correlation table between pH and temperature. A certificate of analysis is available on request. All bottled solutions are sealed with an air tight, tamper-proof seal to prevent any Carbon Dioxide from entering and causing a change in the pH buffer value.","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40200339816583,"sku":"HI-70010P","price":3.01,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/hanna-instruments-ph-1001-buffer-sachet-20ml-315214.jpg?v=1731256505"},{"product_id":"hanna-instruments-ph-10-01-buffer-sachets-25-x-20ml","title":"Hanna Instruments pH 10.01 Buffer Sachets 25 x 20ml","description":"\u003cspan\u003eThe pH 10.01 buffer solution in quick and easy to use 20ml sachets is the most popular buffer used before analysing basic samples. Ideal for those requiring an accurate alkaline reading, particularly suitable for those working in water purification plants, the food industry, aquatics, and Hydroponics, and in any environments where the pH is expected to be alkaline. Hanna Microprocessor pH meters can be calibrated at pH9.18 and pH10.01.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003eThe single dose sachets are really handy with each sealed sachet holding just the right amount of solution. Each time a meter or electrode is calibrated using the Hanna sachets, it is like using a newly opened bottle of solution!\u003cbr\u003e\u003c\/span\u003e\u003cbr\u003eHanna buffer solutions are prepared, ready-to-use, according to precise formulas and standardised in accordance with the National Institute of Standards and Technology (NIST) to ensure quality and accuracy. All solutions show a batch number, an expiry date, and the correlation table between pH and temperature. A certificate of analysis is available on request. All bottled solutions are sealed with an air tight, tamper-proof seal to prevent any Carbon Dioxide from entering and causing a change in the pH buffer value.","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40200339849351,"sku":"HI-70010P","price":42.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/hanna-instruments-ph-1001-buffer-sachets-25-x-20ml-611239.jpg?v=1731256504"},{"product_id":"hanna-instruments-hi-782-25-marine-high-range-nitrate-reagents","title":"Hanna Instruments HI-782-25 Marine High Range Nitrate Reagents","description":"\u003cspan\u003eHI-782-25 High Range Nitrate reagents, 25 tests, for use with the HI-782 HR Nitrate Handheld Colorimeter Checker.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003ch3\u003eMeasurement Procedure\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003ePress the ON\/OFF button to turn the checker on. All segments will be displayed for a few seconds, followed by “Add”, “C.1” with “Press” blinking.\u003c\/li\u003e\n\u003cli\u003eFill the cuvette with 10 mL of unreacted sample and replace the cap. Insert the cuvette into the checker and close the cap.\u003c\/li\u003e\n\u003cli\u003ePress the ON\/OFF button. When the display shows “Add”, “C.2” with “Press” blinking, the checker is zeroed.\u003c\/li\u003e\n\u003cli\u003eRemove the cuvette, unscrew the cap and add the content of one packet of HI-782-0 Marine Nitrate High Range reagent. Replace the cap and shake vigorously for 2 minutes.\u003c\/li\u003e\n\u003cli\u003eInsert the cuvette into the checker and close the cap. Press and hold the ON\/OFF button. The display will show the countdown prior to the measurement. Alternatively, wait 7 minutes and press the button.\u003c\/li\u003e\n\u003cli\u003eWhen the timer ends, the checker will perform the reading. The instrument displays the nitrate concentration in ppm. The checker automatically turns off 10 minutes after readings.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ca href=\"https:\/\/www.hannainstruments.co.uk\/hi-782-25-marine-high-range-nitrate-reagents-x-25-tests.html#description\" target=\"\" rel=\"\"\u003eDescription\u003c\/a\u003e\u003cdiv\u003e\u003cdiv\u003e\n\u003cdiv\u003e\u003ca href=\"https:\/\/www.hannainstruments.co.uk\/hi-782-25-marine-high-range-nitrate-reagents-x-25-tests.html#specifications\" target=\"\" rel=\"\"\u003eSpecification\u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003ca href=\"https:\/\/www.hannainstruments.co.uk\/hi-782-25-marine-high-range-nitrate-reagents-x-25-tests.html#manuals\" target=\"\" rel=\"\"\u003eManuals\u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003ca href=\"https:\/\/www.hannainstruments.co.uk\/hi-782-25-marine-high-range-nitrate-reagents-x-25-tests.html#literature\" target=\"\" rel=\"\"\u003eProduct Literature\u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003ca href=\"https:\/\/www.hannainstruments.co.uk\/hi-782-25-marine-high-range-nitrate-reagents-x-25-tests.html#reviews\" target=\"\" rel=\"\"\u003eReviews\u003c\/a\u003e\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003ch3\u003eMeasurement Procedure\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003ePress the ON\/OFF button to turn the checker on. All segments will be displayed for a few seconds, followed by “Add”, “C.1” with “Press” blinking.\u003c\/li\u003e\n\u003cli\u003eFill the cuvette with 10 mL of unreacted sample and replace the cap. Insert the cuvette into the checker and close the cap.\u003c\/li\u003e\n\u003cli\u003ePress the ON\/OFF button. When the display shows “Add”, “C.2” with “Press” blinking, the checker is zeroed.\u003c\/li\u003e\n\u003cli\u003eRemove the cuvette, unscrew the cap and add the content of one packet of HI-782-0 Marine Nitrate High Range reagent. Replace the cap and shake vigorously for 2 minutes.\u003c\/li\u003e\n\u003cli\u003eInsert the cuvette into the checker and close the cap. Press and hold the ON\/OFF button. The display will show the countdown prior to the measurement. Alternatively, wait 7 minutes and press the button.\u003c\/li\u003e\n\u003cli\u003eWhen the timer ends, the checker will perform the reading. The instrument displays the nitrate concentration in ppm. The checker automatically turns off 10 minutes after readings.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cdiv\u003eTip for an accurate measurement\u003cbr\u003e\u003cbr\u003e\n\u003c\/div\u003eIt is important that the sample does not contain any debris.Whenever the cuvette is placed into the measurement cell, it must be dry outside and completely free of fingerprints, oil or dirt. Wipe it thoroughly with HI-731318 or a lint-free cloth prior to insertion.\u003cbr\u003e\u003cbr\u003eShaking the cuvette can generate bubbles, causing higher readings. To obtain accurate measurements, remove such bubbles by swirling or by gently tapping the cuvette.\u003cbr\u003e\u003cbr\u003eDo not let the reacted sample stand for too long after reagent is added, or accuracy will be lost.After the reading, it is important to discard the sample immediately, otherwise the glass might become permanently stained.","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40200339947655,"sku":"HI-782-25","price":22.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/hanna-instruments-hi-782-25-marine-high-range-nitrate-reagents-495873.jpg?v=1731256503"},{"product_id":"hanna-marine-hr-nitrate-pocket-checker","title":"Hanna Pocket Checker for Testing HR Nitrate - Marine","description":"The HI-782 Marine Nitrate High Range Colorimeter is specifically designed to quickly and accurately determine high levels of nitrate for saltwater aquariums\u003cspan\u003e and marine applications. With a digital read out, there is no more struggling to determine colours visually.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003eMeasurements with a range up to 75.0ppm\u003cbr\u003eLess complex laboratory grade accuracy - Requires only 1 reagent\u003cbr\u003eSimple, intuitive operation (single button)\u003cbr\u003e\u003cspan\u003eCompact and precise whether at home, at work, or on-the-go\u003cbr\u003e\u003c\/span\u003e\u003cbr\u003eEach HI-782 is delivered in a case with custom insert and supplied with:\u003cbr\u003e\u003cspan\u003e\u003cbr\u003eSample cuvette and cap (2 pcs.)\u003cbr\u003eMarine Nitrate High Range reagent starter kit (reagents for 10 tests)\u003cbr\u003e3 mL pipette (1 pc.)\u003cbr\u003e1.5V AAA Alkaline battery (1 pc.)\u003cbr\u003eInstruction manual\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003eNitrate is the final step in the Nitrogen cycle. Excessive amounts of nitrates in saltwater aquariums facilitate the growth of undesirable organisms such as algae and dinoflagellates.\u003cbr\u003e\u003cbr\u003eThe HI-782 Nitrate Checker HC uses the Zinc Reduction method, a no filter process, to measure the concentration of nitrate colorimetrically, ultimately reducing the time of each test and leaving no additional waste.\u003cbr\u003e\u003cspan\u003e\u003cbr\u003eWith higher range measurements, such as the HI-782 which ranges from 0.0 up to 75.0 ppm (as NO3–), there is also no dilution procedure needed.\u003c\/span\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40200339980423,"sku":"HI-782","price":79.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/hanna-marine-hr-nitrate-pocket-checker-810622.jpg?v=1731256506"},{"product_id":"hanna-instruments-high-range-copper-reagents-702-25-pack-of-25","title":"Hanna Instruments High Range Copper Reagents 702-25 (Pack of 25)","description":"\u003cp\u003eThe HI-702-25 are high-quality reagents that are pre-measured, allowing for users to achieve fast and accurate measurements with their Copper High Range Checker® HC. These reagents follow the Bicinchoninate Method in which the reaction between copper and the reagent causes a purple tint in the sample. By simply adding the packet of HI-702-25 reagent to the sample, the reaction will take place and the HI-702 will determine the concentration from the colour that is produced. The results will be displayed in ppm of copper. These reagents are designed to be used with samples that have an expected range of 0.00 to 5.00 ppm copper.\u003c\/p\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40200340045959,"sku":"HI-702-25","price":17.52,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/hanna-instruments-high-range-copper-reagents-702-25-pack-of-25-537731.jpg?v=1731256501"},{"product_id":"hanna-high-range-copper-pocket-checker","title":"Hanna Pocket Checker for Testing High Range Copper - Freshwater and Marine","description":"The HI-702 Copper high range Checker is a simple, accurate and cost effective way to measure high ranges of copper in water. Designed as a more accurate alternative to chemical test kits, the HI-702 provides quick, accurate results in four easy steps. \u003cspan\u003eHI-702 uses an adaptation of the EPA method. The reaction between copper and the bicinchoninate reagent causes a purple tint in the sample.\u003cbr\u003e\u003c\/span\u003e\u003cbr\u003eIdeal for freshwater \u0026amp; saltwater aquariums.\u003cbr\u003e\u003cbr\u003eThe HI-702 Copper high range Checker is a simple, accurate and cost effective way to measure high ranges of copper in water.\u003cbr\u003e\u003cspan\u003eSupplied with reagents for 6 tests.\u003cbr\u003e\u003c\/span\u003e\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003eThe HI-702 Copper high range Checker is a simple, accurate and cost effective way to measure high ranges of copper in water.Designed as a more accurate alternative to chemical test kits, the HI-702 provides quick, accurate results in four easy steps.HI-702 uses an adaptation of the EPA method. The reaction between copper and the bicinchoninate reagent causes a purple tint in the sample.\u003cbr\u003e\u003cbr\u003e\u003cdiv\u003eIdeal for\u003c\/div\u003e\u003cul\u003e\n\u003cli\u003eWater quality\u003c\/li\u003e\n\u003cli\u003eEducation\u003c\/li\u003e\n\u003cli\u003ePlating\u003c\/li\u003e\n\u003cli\u003eWastewater\u003c\/li\u003e\n\u003cli\u003eEnvironmental\u003c\/li\u003e\n\u003cli\u003eAquariums\u003c\/li\u003e\n\u003c\/ul\u003e\u003cdiv\u003eKey features\u003c\/div\u003e\u003cul\u003e\n\u003cli\u003eSmall palm-sized design\u003c\/li\u003e\n\u003cli\u003eAccurate from ±0.05ppm ±5% of reading\u003c\/li\u003e\n\u003cli\u003eDedicated to a single parameter\u003c\/li\u003e\n\u003cli\u003eAuto power off after 10 minutes of inactivity\u003c\/li\u003e\n\u003cli\u003eBuilt-in timer for timed reaction readings\u003c\/li\u003e\n\u003c\/ul\u003eFour steps, one click instant readout\u003cul\u003e\n\u003cli\u003eZero the Checker\u003c\/li\u003e\n\u003cli\u003eAdd reagent\u003c\/li\u003e\n\u003cli\u003eInsert sample into Checker\u003c\/li\u003e\n\u003cli\u003ePress button for results\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40200340078727,"sku":"HI-702","price":84.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/hanna-high-range-copper-pocket-checker-770108.jpg?v=1731256498"},{"product_id":"hanna-hi-731321-glass-cuvettes-for-checkers-4-x-10ml","title":"Hanna HI-731321 Glass Cuvettes for Checkers (4 x 10ml)","description":"The HI-731321 glass cuvettes are supplied as a pack of 4 and are suitable for use with the HI-7** Checkers and the HI-83200 series of multi-parameter bench photometers.\u003cbr\u003e\u003cspan\u003e\u003cbr\u003eGlass cuvettes are constructed of precision glass and are necessary for taking accurate measurements with photometers and turbidity meters. Care must be taken when handling as it is important that the cuvette is always clean and without scratches.\u003c\/span\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40200340144263,"sku":"HI-731321","price":33.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/hanna-hi-731321-glass-cuvettes-for-checkers-4-x-10ml-305838.jpg?v=1731256498"},{"product_id":"hanna-instruments-hi-781-25-marine-low-range-nitrate-reagents","title":"Hanna Instruments HI-781-25 Marine Low Range Nitrate Reagents","description":"HI-781-25 Marine Low Range Nitrate reagents, 25 tests, for use with the HI-781 Nitrate Handheld Colorimeter Checker.\u003cspan\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003eMeasurement Procedure\u003cbr\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003ePress the ON\/OFF button to turn the checker on. All segments will be displayed for a few seconds, followed by “Add”, “C.1” with “Press” blinking.\u003c\/li\u003e\n\u003cli\u003eUsing the 10 mL syringe, measure exactly 7 mL of sample into the large mixing vial.\u003c\/li\u003e\n\u003cli\u003eUsing the 5 mL syringe, add exactly 4 mL of HI-781A-0 reagent into the large mixing vial.\u003c\/li\u003e\n\u003cli\u003eAdd the content of one packet of HI-781B-0 reagent into the large mixing vial. Replace the cap and shake vigorously for 1 minute.\u003c\/li\u003e\n\u003cli\u003eRemove the plunger from the 10 mL syringe. Attach the syringe to the filter holder assembly using the threaded connection.\u003c\/li\u003e\n\u003cli\u003eRemove the cap from the mixing vial. Hold the syringe and filter holder assembly over a cuvette. Carefully pour the contents of the mixing vial into the back of the syringe.\u003c\/li\u003e\n\u003cli\u003eVery slowly push the plunger into the 10mL syringe until the 10mL cuvette has been filled up to the 10 mL mark and replace the cap.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40200340897927,"sku":"HI-781-25","price":24.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/hanna-instruments-hi-781-25-marine-low-range-nitrate-reagents-991349.jpg?v=1731256500"},{"product_id":"hanna-marine-lr-nitrate-pocket-checker","title":"Hanna Pocket Checker for Testing LR Nitrate - Marine","description":"The HI-781 Nitrate Checker HC is a handheld colorimeter that uses the Beer-Lambert principle to determine the concentration of nitrate colorimetrically.\u003cbr\u003e\u003cspan\u003e\u003cbr\u003eThe HI-781 is designed specifically to measure low levels of nitrate in a saltwater aquarium. The 0.00 to 5.00 range is ideal for reef aquarium maintenance.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003eThe Checker®HC handheld colorimeter is supplied with:\u003cbr\u003e\u003cbr\u003eSample cuvette and cap (2)\u003cbr\u003eMarine Nitrate Low Range reagent starter kit (reagents for 25 tests)\u003cbr\u003eFilter paper (25)\u003cbr\u003eFilter holder (1)\u003cbr\u003eMixing vial and cap (1)\u003cbr\u003e5 mL syringe with tip (1)\u003cbr\u003e10 mL syringe with tip (1)\u003cbr\u003e1.5V AAA Alkaline battery (1)\u003cbr\u003eInstruction manual\u003cbr\u003e\u003cbr\u003eNitrate is a by-product of the Nitrogen cycle. Excessive amounts of Nitrates in a reef aquarium can promote the growth of undesirable organisms including algae and dinoflagellates, while insufficient amounts can lead to starvation in which SPS, and other corals, will show signs including the loss of colour and paleness.\u003cbr\u003e\u003cbr\u003e\u003cli\u003eIdeal for aquariums and marine biology\u003c\/li\u003e\u003cli\u003eEasier to use and more accurate than chemical test kits\u003c\/li\u003e\u003cli\u003eSmall size, big convenience\u003c\/li\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40200341061767,"sku":"HI-781","price":79.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/hanna-marine-lr-nitrate-pocket-checker-671272.jpg?v=1731256509"},{"product_id":"autoaqua-smart-stir","title":"Autoaqua Smart Stir","description":"The Smart Stir is a handy gadget to help with accurate water testing. Water testing is an important part of keeping a successful home aquarium.\u003cbr\u003e \u003cbr\u003eFor accurate testing most liquid test kits require the test sample to be mixed or shaken after the addition of a reagent. In some cases adding one drop of reagent at a time, shaking or mixing in between waiting for a colour change to occur. This can prove time consuming and often leads to the reagents being added without proper mixing in between.\u003cbr\u003e \u003cbr\u003eThe Smart stir takes away the need to stop and shake the sample between each step. Simply place the test vial in the top of the unit, with the included stirring bead, press the button and the Smart Stir will mix the sample as you add the reagents. The white base and surround will also help you to see colour changes the moment they happen.\u003cbr\u003e \u003cbr\u003eInstead of having to change batteries in the unit, the Smart Stir has a built in rechargeable lithium battery. This can be charged easily using the provided USB cable, the low battery indicator will show when charging is needed. To save battery power there is also a built in auto shutoff after 5 minutes of continuous running.\u003cbr\u003e \u003cbr\u003e\u003cspan\u003eCompatible with most test vials the Smart Stir has a compact design and is mounted on rubber non slip pads to ensure stability during use.\u003cbr\u003e\u003c\/span\u003e\u003cbr\u003e\u003cdiv\u003eFeatures\u003cbr\u003e\u003cbr\u003e\n\u003c\/div\u003e\u003cdiv\u003e\u003cdiv\u003e\u003cdiv\u003e\n\u003cspan\u003e• Fits most test kit vials\u003cbr\u003e• Compact Design\u003cbr\u003e• USB Rechargeable\u003cbr\u003e• Lithium battery\u003cbr\u003e• Auto off function\u003cbr\u003e• Low battery Indicator\u003cbr\u003e• Quiet operation\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003eSpecification\u003cbr\u003e\u003cbr\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\u003cdiv\u003e\n\u003cdiv\u003e\u003cdiv\u003e\u003cdiv\u003e\u003cspan\u003e• Size 71mm x 71mm x 60mm\u003cbr\u003e• Holder diameter 28mm\u003cbr\u003e• USB charging input 5V\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cdiv\u003e\u003cdiv\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\u003cdiv\u003eIncluded in the box\u003cbr\u003e\u003cbr\u003e\u003cdiv\u003e\u003cdiv\u003e\u003cdiv\u003e\u003cdiv\u003e\u003cdiv\u003e\u003cdiv\u003e\u003cdiv\u003e\u003cspan\u003e• Smart Stir base\u003cbr\u003e• Stirring bead\u003cbr\u003e• USB charging cable\u003cbr\u003e• Wire for removal of stirring bead from test vial\u003c\/span\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"AutoAqua","offers":[{"title":"Default Title","offer_id":40200341192839,"sku":"SMARTSTIR","price":31.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/autoaqua-smart-stir-696465.jpg?v=1731255939"},{"product_id":"hanna-instruments-hi-774-25-marine-phosphate-ulr-reagents","title":"Hanna Instruments HI-774-25 Marine Phosphate ULR Reagents","description":"The HI-774-25 are high-quality reagents that are pre-measured, allowing for users to achieve fast and accurate measurements with their Phosphate Ultra Low Range Checker® HC. These reagents follow the Ascorbic Acid Method in which the reaction between phosphate and reagents causes a blue tint in the sample. By simply adding the packet of HI-774-25 reagent to the sample, the reaction will take place and the HI-774 will determine the concentration from the colour that is produced. \u003cspan\u003eThe results will be displayed in ppb of phosphate. These reagents are designed to be used with samples that have an expected range of 0.00 to 0.90 ppm phosphate.\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40200344731783,"sku":"HI-774-25","price":13.46,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/hanna-instruments-hi-774-25-marine-phosphate-ulr-reagents-827996.jpg?v=1731256498"},{"product_id":"hanna-instruments-hi-93713-01-phosphate-low-range-reagent","title":"Hanna Instruments HI-93713-01 Phosphate Low Range Reagent","description":"\u003cspan\u003eThe HI-93713-01 are reagents for the colorimetric determination of phosphate. There are enough reagents for 100 tests to be used with Hanna’s compatible benchtop and portable photometers. These high quality reagents are clearly marked with the lot number and expiry date on each packet for traceability. For use with the Hanna HI-93713, HI-83200, HI-83203, HI-83205, HI-83206, HI-83208 and HI-83099 photometers and HI-83300 series.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003eThe HI-93713-01 are high quality reagents that are pre-measured, allowing for users to achieve fast and accurate colorimetric measurements. The method is an adaptation of the ascorbic acid method in which the reaction between phosphate and the reagent causes a blue tint in the sample. The intensity of colour is determined by a compatible photometer and the phosphate concentration will be displayed in mg\/L (ppm). These reagents are designed to be used with samples that have an expected range of 0.00 to 2.50 mg\/L (ppm) phosphate.\u003cbr\u003e\u003c\/span\u003e\u003cbr\u003e\u003cdiv\u003eTip for an accurate measurement\u003cbr\u003e\u003cbr\u003e\n\u003c\/div\u003eIt is important that the sample does not contain any debris.When the cuvette is placed into the measurement cell, it must be dry outside and completely free of fingerprints, oil or dirt. Wipe it thoroughly with HI-731318 or a lint-free cloth prior to insertion.Shaking the cuvette can generate bubbles, causing higher readings. To obtain accurate measurements, remove such bubbles by swirling or by gently tapping the cuvette.Do not let the reacted sample stand for too long after reagent is added, or accuracy will be lost.\u003cspan\u003eAfter the reading, it is important to discard the sample immediately, otherwise the glass might become permanently stained.\u003cbr\u003e\u003cbr\u003e100 Tests\u003c\/span\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40200344928391,"sku":"HI-93713-01","price":36.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/hanna-instruments-hi-93713-01-phosphate-low-range-reagent-774204.jpg?v=1731256501"},{"product_id":"hanna-instruments-nitrite-marine-ulr-reagents-764-25-pack-of-25","title":"Hanna Instruments Nitrite Marine ULR Reagents 764-25 (Pack of 25)","description":"\u003cspan\u003eThe HI-764-25 are the replacement reagents for the HI-764 Nitrite Ultra Low Range Checker® HC. These high-quality reagents are clearly marked with the lot number and expiry date on each packet for traceability.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003eThe HI-764-25 are high quality reagents that are pre-measured, allowing for users to achieve fast and accurate measurements with their Nitrite Ultra Low Range Checker® HC. These reagents follow the Diazotization Method in which the reaction between nitrite and reagent causes a pink tint in the sample. By simply adding the packet of HI-764-25 reagent to the sample, the reaction will take place and the HI-764 will determine the concentration from the colour that is produced. The results will be displayed in ppb of nitrite. These reagents are designed to be used with samples that have an expected range of 0 to 200 ppb nitrite.\u003cdiv\u003e\u003cdiv\u003e\u003cdiv\u003e\n\u003cbr\u003eThe HI-764-25 are high quality reagents that are pre-measured, allowing for users to achieve fast and accurate measurements with their Nitrite Ultra Low Range Checker® HC. These reagents follow the Diazotization Method in which the reaction between nitrite and reagent causes a pink tint in the sample. By simply adding the packet of HI-764-25 reagent to the sample, the reaction will take place and the HI-764 will determine the concentration from the colour that is produced. The results will be displayed in ppb of nitrite. These reagents are designed to be used with samples that have an expected range of 0 to 200 ppb nitrite.\u003cbr\u003e\u003cbr\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\u003cdiv\u003eTip for an accurate measurement\u003c\/div\u003eIt is important that the sample does not contain any debris.Whenever the cuvette is placed into the measurement cell, it must be dry outside and completely free of fingerprints, oil or dirt. Wipe it thoroughly with HI-731318 or a lint-free cloth prior to insertion. Shaking the cuvette can generate bubbles, causing higher readings. To obtain accurate measurements, remove such bubbles by swirling or by gently tapping the cuvette. Do not let the reacted sample stand for too long after reagent is added, or accuracy will be lost.After the reading, it is important to discard the sample immediately, otherwise the glass might become permanently stained.","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40200345550983,"sku":"HI-764-25","price":12.94,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/hanna-instruments-nitrite-marine-ulr-reagents-764-25-pack-of-25-761562.jpg?v=1731256504"},{"product_id":"hanna-marine-phosphate-ulr-pocket-checker","title":"Hanna Pocket Checker for Testing Phosphate ULR - Freshwater and Marine","description":"\u003cp\u003eThe HI-774 Ultra Low Range Phosphate Checker® HC (Handheld Colorimeter) provides a simple, accurate and cost effective way to measure phosphate from 0.00 to 0.90 ppm. \u003cspan\u003ePhosphate is an important parameter to measure in aquaculture and aquariums. Levels that are too high can lead to extensive algae growth, depleted dissolved oxygen levels, and ultimately can be fatal to many types of fish and aquatic life.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003eDesigned as a more accurate alternative to chemical test kits, the HI-774 provides quick, accurate results in a few easy steps\u003cbr\u003e\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cdiv\u003eFeatures:\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003eEasier to use and more accurate than chemical test kits\u003c\/li\u003e\n\u003cli\u003eDedicated to a single parameter\u003c\/li\u003e\n\u003cli\u003eSmall size, big convenience\u003c\/li\u003e\n\u003cli\u003eIdeal for: Aquariums, Environmental, Aquaculture, Water Quality\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003eTips for an accurate measurement\u003c\/div\u003e\n\u003cp\u003eIt is important that the sample does not contain any debris.Whenever the cuvette is placed into the measurement cell, it must be dry outside, and completely free of fingerprints, oil and dirt. Wipe it thoroughly with HI-731318 or a lint–free cloth prior to insertion.Shaking the cuvette can generate bubbles, causing higher readings. To obtain accurate measurements, remove bubbles by swirling or be gently tapping the cuvette.Do not let the reacted sample stand for too long after reagent is added as accuracy will be affected.\u003cspan\u003eAfter the reading, it is important to immediately discard the sample otherwise the glass might become permanently stained.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003eSupplied with\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003e2 sample cuvettes\u003c\/li\u003e\n\u003cli\u003eCuvette cap\u003c\/li\u003e\n\u003cli\u003eStarter pack of reagents x 6 tests (re-ordering information: HI-774-25 x 25 tests)\u003c\/li\u003e\n\u003cli\u003e1 x 1.5 AAA battery\u003c\/li\u003e\n\u003cli\u003eInstructions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003eFour steps. One click. Instant Readout.\u003cbr\u003e\u003cbr\u003e\u003cspan\u003e1. ‘Zero’ the Checker®HC with your vial inside\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003e2. Place a 10ml sample into the vial and add your reagent\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003e3. Place your vial into your Checker®HC\u003cbr\u003e\u003c\/span\u003e4. Press the button and read the results\u003cbr\u003e\n\u003c\/div\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40200345583751,"sku":"HI-774","price":79.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/hanna-marine-phosphate-ulr-pocket-checker-825922.jpg?v=1731256510"},{"product_id":"hanna-waterproof-salinity-tester","title":"Hanna Waterproof Salinity Tester","description":"The new HI-98319 waterproof salinity and temperature tester is perfect for any saltwater aquarium. A more accurate alternative to refractometers, this tester uses conductivity to determine salinity levels of natural and artificial seawater. Ideal for testing salinity in salt water aquariums, it is quick and easy to use and provides digital readout of both salinity and temperature.\u003cbr\u003e\u003cbr\u003eSalinity results are displayed in either parts per thousand (ppt), Practical Salinity Units (PSU), or Specific Gravity (SG).\u003cbr\u003e\u003cspan\u003e\u003cbr\u003eThe salinity tester is supplied complete with batteries and solutions allowing you to start measuring right away. Also displays temperature.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003eThis pocket sized meter is waterproof and perfect for the measurement of salinity aquariums using conductivity to determine the salinity level of your water.\u003cbr\u003e\u003cspan\u003e\u003cbr\u003eSalinity should be checked regularly in aquariums. As Oceans are very stable environments, where there is not a lot of day to day change in the water parameters, fish can respond negatively to even small changes in salinity.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003cbr\u003eEach meter is supplied with:\u003cbr\u003e\u003cbr\u003eCR2032 battery (installed)\u003cbr\u003eStorage\/protection shield\u003cbr\u003eInstruction manual\u003cbr\u003eQuality certificate\u003cbr\u003e35.00 ppt calibration standard sachet (x 4)\u003cbr\u003e\u003cbr\u003eTo obtain the highest accuracy for measurements, it is important to follow these guidelines:\u003cbr\u003e\u003cbr\u003e\u003cli\u003eCalibration is only as good as the solution being used. Fresh solution should be used for each calibration\u003c\/li\u003e\u003cli\u003eThe probe should be rinsed with purified water each time before placing in calibration solution or sample to be tested\u003c\/li\u003e\u003cli\u003eRecommended solution: HI-70024P Calibration Solution 35.00ppt, 25 x 20ml sachets\u003c\/li\u003e\u003cbr\u003e\u003cdiv\u003eBattery Replacement\u003cbr\u003e\u003cbr\u003e\n\u003c\/div\u003eThe meter features a low battery indicator. When the battery is running low, the battery indicator will blink on the LCD. Simply change the CR2032 Li-ion battery by removing the battery cover located on the back of the meter.","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40200348369031,"sku":"HI-98319","price":89.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/hanna-waterproof-salinity-tester-559049.jpg?v=1731256514"},{"product_id":"hanna-instruments-marine-alkalinity-reagent-hi-772-26-for-dkh-checker","title":"Hanna Instruments Marine Alkalinity Reagent HI-772-26 (For dKH Checker)","description":"\u003cdiv\u003eHI-772-26 Marine alkalinity, colorimetric method, Reagents for 25 tests\u003cbr\u003eThe HI-772-26 are high-quality, pre-measured reagents that allow users to achieve fast and accurate measurements with their Marine Alkalinity Checker® HC. These reagents follow the Colorimetric Method in which the reaction causes a distinctive range of colours from yellow to green to blue to develop. By simply adding the solution of HI-772-26 to the sample, the reaction will take place and the Marine Alkalinity Checkers will determine the concentration from the colour that is produced. The results will be displayed in dKH for the HI-772 Checker .\u003cspan\u003eThese reagents are designed to be used with samples that have an expected range of 0.0 to 20.0 dKH.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003eMethod - Colorimetric\u003c\/div\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40200349745287,"sku":"HI-772-26","price":9.45,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/hanna-instruments-marine-alkalinity-reagent-hi-772-26-for-dkh-checker-585083.jpg?v=1731256503"},{"product_id":"hanna-marine-alkalinity-dkh-pocket-checker","title":"Hanna Pocket Checker for Testing Alkalinity (dKH) - Marine","description":"\u003cspan\u003eDesigned exclusively for saltwater aquariums, the HI-772 checker offers a quick, easy and highly accurate method of measuring alkalinity in degrees of calcium hardness, commonly abbreviated as dKH.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003eAlkalinity helps to maintain a stable pH, a vital factor for most aquatic life. Corals also need an adequate level of alkalinity in order to support healthy growth: if levels are too low, corals cannot precipitate and form their skeletons; if levels fluctuate too much or too quickly, growth can become impaired.The more precise and stable the levels, the better the results. With regular, precise monitoring, fluctuations in levels can be quickly corrected, giving your corals the best chance of success.\u003cbr\u003e\u003ch3\u003eIdeal for\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eSalt water aquariums\u003c\/li\u003e\n\u003cli\u003eCoral reef tanks\u003c\/li\u003e\n\u003cli\u003eWater quality\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eMain Benefits\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eTesting is quick and easy\u003c\/li\u003e\n\u003cli\u003eHigh precision results - more accurate than chemical test kits\u003c\/li\u003e\n\u003cli\u003eAuto shut-off feature means the Checker cannot be left on by mistake\u003c\/li\u003e\n\u003cli\u003eFully portable, fitting easily into both palm and pocket\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFour steps, one click instant readout\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eZero the Checker\u003c\/li\u003e\n\u003cli\u003eAdd reagent\u003c\/li\u003e\n\u003cli\u003eInsert sample into Checker\u003c\/li\u003e\n\u003cli\u003ePress button for results\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSupplied with\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e2 sample cuvettes\u003c\/li\u003e\n\u003cli\u003eCuvette cap\u003c\/li\u003e\n\u003cli\u003eStarter pack of reagents HI-772-26\u003c\/li\u003e\n\u003cli\u003e1 x 1.5 AAA battery\u003c\/li\u003e\n\u003cli\u003eInstructions\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40200351907975,"sku":"HI-772","price":79.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/hanna-marine-alkalinity-dkh-pocket-checker-908157.jpg?v=1731256507"},{"product_id":"hanna-pocket-checker-for-phosphorous-testing","title":"Hanna Pocket Checker for Testing Phosphorous - Marine","description":"\u003cb\u003eIdeal for salt water aquariums\u003cbr\u003e\u003cbr\u003e(not suitable for cold water aquariums)\u003cbr\u003e\u003c\/b\u003e\u003cbr\u003eSpecially designed for salt water aquaria, the HI-736 Phosphorus Checker will measure vital phosphorus levels - even at exceptionally low range.Phosphorous (as phosphate) is introduced to aquaria through feed, decaying plant and animal waste and even tap water. However phosphate is a driving factor in excess algae growth and without adequate checks, the phosphate can quickly become so abundant that it turns into a real nuisance.For healthy aquatic life it is therefore important to keep levels as close to zero as possible. The Hanna Checker now makes it possible for salt water fish enthusiasts to maintain ultra low levels at genuinely affordable prices.\u003cbr\u003e\u003cb\u003e\u003cbr\u003eIdeal for\u003c\/b\u003e\u003cbr\u003e\u003cli\u003eSalt water aquariums\u003c\/li\u003e\u003cli\u003eCoral reef tanks\u003c\/li\u003e\u003cbr\u003e\u003cb\u003eMain Benefits\u003c\/b\u003e\u003cbr\u003e\u003cli\u003eTesting is quick and easy\u003c\/li\u003e\u003cli\u003eHigh precision results - more accurate than chemical test kits\u003c\/li\u003e\u003cli\u003eAuto shut-off feature means the Checker cannot be left on by mistake\u003c\/li\u003e\u003cli\u003eFully portable, fitting easily into both palm and pocket\u003c\/li\u003e\u003cbr\u003e\u003cb\u003eFour steps, one click instant readout\u003c\/b\u003e\u003cbr\u003e\u003cli\u003eZero the Checker\u003c\/li\u003e\u003cli\u003eAdd reagent\u003c\/li\u003e\u003cli\u003eInsert sample into Checker\u003c\/li\u003e\u003cli\u003ePress button for results\u003c\/li\u003e\u003cbr\u003e\u003cb\u003eSupplied with\u003c\/b\u003e\u003cbr\u003e\u003cli\u003e2 sample cuvettes\u003c\/li\u003e\u003cli\u003eCuvette cap\u003c\/li\u003e\u003cli\u003eStarter pack of reagents\u003c\/li\u003e\u003cli\u003e1 x 1.5 AAA battery\u003c\/li\u003e\u003cli\u003eInstructions\u003c\/li\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40200355479687,"sku":"HI-736","price":79.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/hanna-pocket-checker-for-phosphorous-testing-568828.jpg?v=1731256513"},{"product_id":"hanna-instruments-marine-calcium-reagent-758-26-25-tests","title":"Hanna Instruments Marine Calcium Reagent 758-26 (25 Tests)","description":"\u003cp\u003eThe reagent has a part A (HI7581 liquid 30ml) and part B (HI7582 powder 25 packs). HI 758-26 contains both HI 7581 and HI 7582.\u003c\/p\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40200357642375,"sku":"HI758-26","price":34.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/hanna-instruments-marine-calcium-reagent-758-26-25-tests-840120.jpg?v=1731256502"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/collections\/red-sea-marine-care-test-kit-596227.jpg?v=1740059978","url":"https:\/\/charterhouse-aquatics.com\/collections\/saltwater-test-kits.oembed","provider":"Charterhouse Aquatics","version":"1.0","type":"link"}