{"title":"Freshwater Filter Media","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003eWhether you are looking for biological filtration, mechanical filtration, chemicals or carbon Charterhouse have you covered. We stock filter media from all of the biggest brands including, Eheim, JBL, Seachem, Red Sea, Aquaforest, Rowa and many many more\u003c\/span\u003e\u003c\/p\u003e","products":[{"product_id":"juwel-phorax-xl","title":"Juwel Phorax XL","description":"JUWEL Phorax is a highly effective filter medium used to break down phosphates in your aquarium. This effectively reduces the growth of algae and can contribute to improved plant growth.\n\nPhosphate regularly gets into aquariums through fish food and are naturally very unlikely to be broken down. However, plants need only tiny quantities of phosphate for their natural growth (fresh water: 0.05 mg\/l, saltwater 0.01 mg\/l). Too much phosphate can, in some cases, trigger prolific algae growth.\n\n\nPhorax consists of an aluminium mineral which binds dissolved phosphate by creating a water-insoluble aluminium phosphate and removing it from the water. This makes JUWEL Phorax highly effective, binding up to 12 mg of phosphate per gram of Phorax.\n\n\n\u003cbr\u003e\u003cspan\u003e\u003cb\u003e\u003cbr\u003eCharacteristics of JUWEL Phorax\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003e\n\n\n• Reduces phosphate\u003cbr\u003e\n\n• Slows down algae growth\u003cbr\u003e\n\n• Promotes plant growth\u003cbr\u003e\n\n• Suitable for use in freshwater and saltwater aquariums\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003eMeasurements 14 x 14 x 5 cm","brand":"Juwel","offers":[{"title":"Default Title","offer_id":40196624515207,"sku":"32131","price":14.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/juwel-phorax-xl-412146.jpg?v=1731256700"},{"product_id":"juwel-phorax-l","title":"Juwel Phorax L","description":"JUWEL Phorax is a highly effective filter medium used to break down phosphates in your aquarium. This effectively reduces the growth of algae and can contribute to improved plant growth.\n\nPhosphate regularly gets into aquariums through fish food and are naturally very unlikely to be broken down. However, plants need only tiny quantities of phosphate for their natural growth (fresh water: 0.05 mg\/l, saltwater 0.01 mg\/l). Too much phosphate can, in some cases, trigger prolific algae growth.\n\n\nPhorax consists of an aluminium mineral which binds dissolved phosphate by creating a water-insoluble aluminium phosphate and removing it from the water. This makes JUWEL Phorax highly effective, binding up to 12 mg of phosphate per gram of Phorax.\n\n\n\u003cbr\u003e\u003cspan\u003e\u003cb\u003e\u003cbr\u003eCharacteristics of JUWEL Phorax\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003e\n\n\n• Reduces phosphate\u003cbr\u003e\n\n• Slows down algae growth\u003cbr\u003e\n\n• Promotes plant growth\u003cbr\u003e\n\n• Suitable for use in freshwater and saltwater aquariums\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003eMeasurements 12 x 12 x 5 cm","brand":"Juwel","offers":[{"title":"Default Title","offer_id":40196624580743,"sku":"32130","price":13.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/juwel-phorax-l-839753.jpg?v=1731256698"},{"product_id":"juwel-amorax-xl","title":"Juwel Amorax XL","description":"Amorax is a highly effective filter medium used to break down ammonium in your aquarium. It prevents the formation of ammonia, effectively reduces the growth of algae and can contribute to improved plant growth. \u003cbr\u003e\u003cbr\u003eCharacteristics of JUWEL Amorax:\u003cbr\u003e\u003cbr\u003e• Reduces ammonium• Slows down algae growth\u003cbr\u003e• Promotes plant growth\u003cbr\u003e\u003cspan\u003e• Suitable for use in freshwater and saltwater aquariums\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003eMeasurements 14 x 14 x 5 cm","brand":"Juwel","offers":[{"title":"Default Title","offer_id":40196625006727,"sku":"32126","price":14.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/juwel-amorax-xl-443549.jpg?v=1731256658"},{"product_id":"juwel-amorax-l","title":"Juwel Amorax L","description":"Amorax is a highly effective filter medium used to break down ammonium in your aquarium. It prevents the formation of ammonia, effectively reduces the growth of algae and can contribute to improved plant growth. \u003cbr\u003e\u003cbr\u003eCharacteristics of JUWEL Amorax:\u003cbr\u003e\u003cbr\u003e• Reduces ammonium• Slows down algae growth\u003cbr\u003e• Promotes plant growth\u003cbr\u003e\u003cspan\u003e• Suitable for use in freshwater and saltwater aquariums\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003eMeasurements 12 x 12 x 5 cm","brand":"Juwel","offers":[{"title":"Default Title","offer_id":40196625039495,"sku":"32125","price":13.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/juwel-amorax-l-620949.jpg?v=1731256655"},{"product_id":"juwel-amorax-m","title":"Juwel Amorax M","description":"Amorax is a highly effective filter medium used to break down ammonium in your aquarium. It prevents the formation of ammonia, effectively reduces the growth of algae and can contribute to improved plant growth. \u003cbr\u003e\u003cbr\u003eCharacteristics of JUWEL Amorax:\u003cbr\u003e\u003cbr\u003e• Reduces ammonium• Slows down algae growth\u003cbr\u003e• Promotes plant growth\u003cbr\u003e\u003cspan\u003e• Suitable for use in freshwater and saltwater aquariums\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003eMeasurements 9.5 x 9.5 x 4.5 cm","brand":"Juwel","offers":[{"title":"Default Title","offer_id":40196625170567,"sku":"32124","price":9.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/juwel-amorax-m-928730.jpg?v=1731256655"},{"product_id":"fluval-evo-spec-foam-filter","title":"Fluval EVO\/Spec Foam Filter","description":"\u003cp\u003eThe Fluval Sea Foam Filter Block is suitable for Fluval EVO 13.5 US gal (52 L) aquarium and the Fluval SPEC 16 US gal (60 L) aquarium.\u003c\/p\u003e","brand":"Fluval","offers":[{"title":"Default Title","offer_id":40196844945543,"sku":"10532","price":5.35,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/fluval-evospec-foam-filter-898849.jpg?v=1731256488"},{"product_id":"biorb-service-kits-3-pack-with-water-optimiser","title":"BiOrb Service Kits 3 Pack with Water Optimiser","description":"\u003cp\u003eThis pack contains three complete biOrb Service Kits, plus\n\u003cbr\u003eincludes the new Water Optimiser to help keep\n\u003cbr\u003ethe aquarium crystal clear.\u003c\/p\u003e","brand":"Biorb","offers":[{"title":"Default Title","offer_id":40196900847751,"sku":"46021","price":29.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/biorb-service-kits-3-pack-with-water-optimiser-111316.jpg?v=1731255981"},{"product_id":"juwel-phorax-m","title":"Juwel Phorax M","description":"JUWEL Phorax is a highly effective filter medium used to break down phosphates in your aquarium. This effectively reduces the growth of algae and can contribute to improved plant growth.\n\nPhosphate regularly gets into aquariums through fish food and are naturally very unlikely to be broken down. However, plants need only tiny quantities of phosphate for their natural growth (fresh water: 0.05 mg\/l, saltwater 0.01 mg\/l). Too much phosphate can, in some cases, trigger prolific algae growth.\n\n\nPhorax consists of an aluminium mineral which binds dissolved phosphate by creating a water-insoluble aluminium phosphate and removing it from the water. This makes JUWEL Phorax highly effective, binding up to 12 mg of phosphate per gram of Phorax.\n\n\n\u003cbr\u003e\u003cspan\u003e\u003cb\u003e\u003cbr\u003eCharacteristics of JUWEL Phorax\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003e\n\n\n• Reduces phosphate\u003cbr\u003e\n\n• Slows down algae growth\u003cbr\u003e\n\n• Promotes plant growth\u003cbr\u003e\n\n• Suitable for use in freshwater and saltwater aquariums\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003eMeasurements 9,5 x 9,5 x 4,5 cm\u003c\/span\u003e","brand":"Juwel","offers":[{"title":"Default Title","offer_id":40196901437575,"sku":"2072584","price":9.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/juwel-phorax-m-280634.jpg?v=1731256703"},{"product_id":"fluval-edge-foam-biomax-kit","title":"Fluval Edge Foam Biomax Kit","description":"\u003cp\u003eFluval Edge Foam and Biomax replacement kit for use in the Fluval Edge aquariums.\u003c\/p\u003e","brand":"Fluval","offers":[{"title":"Default Title","offer_id":40196921098375,"sku":"A1389","price":5.17,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/fluval-edge-foam-biomax-kit-616762.jpg?v=1731256486"},{"product_id":"fluval-edge-carbon-clean-and-clear","title":"Fluval Edge Carbon Clean and Clear","description":"\u003cp\u003eFluval Edge Carbon Clean and Clear Sachets for use in the Fluval Edge aquarium filter. Pack contains 3 x 45g sachets.\u003c\/p\u003e","brand":"Fluval","offers":[{"title":"Default Title","offer_id":40196921163911,"sku":"A1379","price":5.2,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/fluval-edge-carbon-clean-and-clear-760727.jpg?v=1731256486"},{"product_id":"biorb-ceramic-media","title":"BiOrb Ceramic Media","description":"450g Ceramic Media\u003cbr\u003e\u003cbr\u003eThe ceramic media in your biOrb forms the main part of filtration and is important in keeping the water clear and healthy. Beneficial bacteria colonise the ceramic media and remove toxic fish waste from the water as the water flows through it. biOrb ceramic media is full of pores for bacteria to live on, just 900g of ceramic media has the surface area equivalent to a football pitch. You can add more media to your biOrb to increase the area for filtration. Over time, these pores can become blocked with dirt and limescale reducing the surface area available. Replacing some of the media every year or so can help to keep the filtration efficient. Never replace more than 1\/3rd of your media at one time and wait at least a month before replacing any more. ","brand":"Biorb","offers":[{"title":"Default Title","offer_id":40196945051783,"sku":"46023","price":9.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/biorb-ceramic-media-501864.jpg?v=1731255949"},{"product_id":"biorb-service-kit","title":"BiOrb Service Kit","description":"\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cdiv\u003eThe filter cartridge in your biOrb should be changed every 4-8 weeks*.A new cartridge is supplied in the Service Kit as well as a special cleaning pad for removing dirt and algae from the inside surface of the biOrb and water preparation chemicals for carrying out a partial water change. The kit also contains easy to follow step by step instructions. Most aquariums have filters with several compartments containing different types of filter media which needs to be carefully cut, measured and changed. Changing too much or too little can result in water quality problems. In the Service Kit this has all been done for you, so you just have to replace the filter cartridge and don’t need to worry. *Frequency of filter changes depends on the size of your biOrb and the fish stocking level. Please refer to your biOrb instructions for further details.\n\u003cul\u003e\n\u003cli\u003e1 x Replacement Filter Cartridge \u003c\/li\u003e\n\u003cli\u003e1 x Water Preparation Chemicals \u003c\/li\u003e\n\u003cli\u003e1 x Cleaning Pad Aquarium\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Biorb","offers":[{"title":"Default Title","offer_id":40196945412231,"sku":"46014","price":8.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/biorb-service-kit-857781.jpg?v=1731255981"},{"product_id":"sicce-shark-pro-foams","title":"Sicce SHARK PRO Foams","description":"Sicce SHARK PRO Foams\n                                                            \u003cbr\u003e\u003cbr\u003e4 pcs, 20ppi, 1 pc. 30 ppi\u003cbr\u003e","brand":"Sicce","offers":[{"title":"Default Title","offer_id":40199654572167,"sku":"481238","price":7.49,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/sicce-shark-pro-foams-113198.jpg?v=1731257375"},{"product_id":"hobby-aqualon-filter-wool-1000g","title":"Hobby Aqualon Filter Wool 1000g","description":"\u003cspan\u003eIs not only able to trap bacterial colonies but above all also acts as a filter material for catching coarse dirt and debris.\u003cbr\u003e\u003c\/span\u003e\u003cbr\u003efully synthetic quality product for fresh- and marine water\u003cbr\u003ecan be used according to the filter type and its size on its own or in combination with other filtration materials\u003cbr\u003erinse through well with warm water prior to initial use\u003cbr\u003e","brand":"Hobby","offers":[{"title":"Default Title","offer_id":40199654703239,"sku":"125166","price":14.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/hobby-aqualon-filter-wool-1000g-978777.jpg?v=1731256524"},{"product_id":"hobby-aqualon-filter-wool-500g","title":"Hobby Aqualon Filter Wool 500g","description":"\u003cspan\u003eIs not only able to trap bacterial colonies but above all also acts as a filter material for catching coarse dirt and debris.\u003cbr\u003e\u003c\/span\u003e\u003cbr\u003efully synthetic quality product for fresh- and marine water\u003cbr\u003ecan be used according to the filter type and its size on its own or in combination with other filtration materials\u003cbr\u003erinse through well with warm water prior to initial use\u003cbr\u003e","brand":"Hobby","offers":[{"title":"Default Title","offer_id":40199654899847,"sku":"125164","price":8.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/hobby-aqualon-filter-wool-500g-650833.jpg?v=1731256525"},{"product_id":"hobby-aqualon-filter-wool-250g","title":"Hobby Aqualon Filter Wool 250g","description":"\u003cspan\u003eIs not only able to trap bacterial colonies but above all also acts as a filter material for catching coarse dirt and debris.\u003cbr\u003e\u003c\/span\u003e\u003cbr\u003efully synthetic quality product for fresh- and marine water\u003cbr\u003ecan be used according to the filter type and its size on its own or in combination with other filtration materials\u003cbr\u003erinse through well with warm water prior to initial use\u003cbr\u003e","brand":"Hobby","offers":[{"title":"Default Title","offer_id":40199654932615,"sku":"125162","price":5.3,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/hobby-aqualon-filter-wool-250g-320529.jpg?v=1731256525"},{"product_id":"hobby-aqualon-filter-wool-100g","title":"Hobby Aqualon Filter Wool 100g","description":"\u003cspan\u003eIs not only able to trap bacterial colonies but above all also acts as a filter material for catching coarse dirt and debris.\u003cbr\u003e\u003c\/span\u003e\u003cbr\u003efully synthetic quality product for fresh- and marine water\u003cbr\u003ecan be used according to the filter type and its size on its own or in combination with other filtration materials\u003cbr\u003erinse through well with warm water prior to initial use\u003cbr\u003e","brand":"Hobby","offers":[{"title":"Default Title","offer_id":40199654965383,"sku":"125160","price":3.07,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/hobby-aqualon-filter-wool-100g-258819.jpg?v=1731256524"},{"product_id":"sicce-shark-pro-carbon-cartridge-with-sponge-20ppi","title":"Sicce SHARK PRO Carbon Cartridge with Sponge 20ppi","description":"Sicce SHARK PRO Carbon Cartridge with Sponge 20ppi\u003cbr\u003e\u003cbr\u003eActive Carbon","brand":"Sicce","offers":[{"title":"Default Title","offer_id":40199654998151,"sku":"481234","price":11.14,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/sicce-shark-pro-carbon-cartridge-with-sponge-20ppi-412392.jpg?v=1731257375"},{"product_id":"sicce-shark-pro-hyperbio-pearl-cartridge-with-sponge-20ppi","title":"Sicce SHARK PRO Hyperbio Pearl Cartridge with Sponge 20ppi","description":"Sicce SHARK PRO Hyperbio Pearl Cartridge with Sponge 20ppi\u003cbr\u003e\u003cbr\u003eBiological Filtration","brand":"Sicce","offers":[{"title":"Default Title","offer_id":40199655129223,"sku":"481230","price":10.44,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/sicce-shark-pro-hyperbio-pearl-cartridge-with-sponge-20ppi-798437.jpg?v=1731257375"},{"product_id":"sicce-shark-pro-zerophos-cartridge-with-sponge-20ppi","title":"Sicce SHARK PRO Zerophos Cartridge with Sponge 20ppi","description":"Sicce SHARK PRO Zerophos Cartridge with Sponge 20ppi\u003cbr\u003e\u003cbr\u003eChemical Filtration","brand":"Sicce","offers":[{"title":"Default Title","offer_id":40199655161991,"sku":"481232","price":12.18,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/sicce-shark-pro-zerophos-cartridge-with-sponge-20ppi-953476.jpg?v=1731257377"},{"product_id":"sicce-shark-pro-module-with-sponges","title":"Sicce Shark PRO 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area\u003c\/li\u003e\n\u003cli\u003eHighly porous\u003c\/li\u003e\n\u003cli\u003eInert, pH neutral\u003c\/li\u003e\n\u003cli\u003eLightweight\u003c\/li\u003e\n\u003cli\u003eAvailable worldwide\u003c\/li\u003e\n\u003cli\u003eEconomical\u003c\/li\u003e\n\u003cli\u003e25mm \u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan\u003eThe Alfagrog range of porous ceramic filter media is made under controlled conditions in Staffordshire, UK. Selected clays and raw materials are rapidly sintered at high temperature to produce a foamed ceramic porous mass, which is crushed and sieved to a convenient particle size. Alfagrog is available in a wide range of sizes giving the end user optimum media surface area in varying water flow rates.\u003cspan\u003e \u003cspan\u003eThe manufacturing process ensures that no substances are present to adversely affect the health of fish or plants. The material is pH neutral and can be used in both freshwater, marine and pond applications.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan\u003eWhy is Alfagrog so effective?\u003cspan\u003e \u003cbr\u003e\u003cbr\u003eThe key to effective biological filtration is choosing media with the highest surface area possible to allow beneficial bacteria to colonise and remove waste from the water. Alfagrog has an extremely high surface area by volume compared with other types of filter media on the market.\u003c\/span\u003e\u003cspan\u003e \u003cbr\u003e\u003cspan\u003e\u003cbr\u003eThe table pictured shows that in theory approximately 20 times more volume of foam would be required to attain the same level of filtration as Alfagrog E40 and almost 40 times as much as Alfagrog E25. This means a smaller filtration unit can be used when using Alfagrog to attain the same results as a much larger unit filled with inferior and often more expensive filter media.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003eAlfagrog can also be used as decorative aquatic gravel, aquarium landscaping and in a wide variety of applications.\u003cbr\u003e","brand":"Alfagrog","offers":[{"title":"Default Title","offer_id":40199658438791,"sku":"138003","price":25.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/alfagrog-filter-media-e25-20l-950678.jpg?v=1731255825"},{"product_id":"alfagrog-filter-media-e40-15l","title":"Alfagrog Filter Media E40 15L","description":"\u003cspan\u003eWhat is Alfagrog?\u003cspan\u003e \u003cbr\u003e\u003cbr\u003eAlfagrog is a porous foamed ceramic material, which is lightweight, strong and inert.\u003c\/span\u003e It's high surface area makes it the natural choice for colonisation by micro organisms in biological filtration systems resulting in cleaner water. Benefits of Alfagrog over other filter media:\u003cspan\u003e \u003cul\u003e\n\u003cli\u003eExtremely high surface area\u003c\/li\u003e\n\u003cli\u003eHighly porous\u003c\/li\u003e\n\u003cli\u003eInert, pH neutral\u003c\/li\u003e\n\u003cli\u003eLightweight\u003c\/li\u003e\n\u003cli\u003eAvailable worldwide\u003c\/li\u003e\n\u003cli\u003eEconomical\u003c\/li\u003e\n\u003cli\u003e40mm \u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan\u003eThe Alfagrog range of porous ceramic filter media is made under controlled conditions in Staffordshire, UK. Selected clays and raw materials are rapidly sintered at high temperature to produce a foamed ceramic porous mass, which is crushed and sieved to a convenient particle size. Alfagrog is available in a wide range of sizes giving the end user optimum media surface area in varying water flow rates.\u003cspan\u003e \u003cspan\u003eThe manufacturing process ensures that no substances are present to adversely affect the health of fish or plants. The material is pH neutral and can be used in both freshwater, marine and pond applications.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan\u003eWhy is Alfagrog so effective?\u003cspan\u003e \u003cbr\u003e\u003cbr\u003eThe key to effective biological filtration is choosing media with the highest surface area possible to allow beneficial bacteria to colonise and remove waste from the water. Alfagrog has an extremely high surface area by volume compared with other types of filter media on the market.\u003c\/span\u003e\u003cspan\u003e \u003cbr\u003e\u003cspan\u003e\u003cbr\u003eThe table pictured shows that in theory approximately 20 times more volume of foam would be required to attain the same level of filtration as Alfagrog E40 and almost 40 times as much as Alfagrog E25. This means a smaller filtration unit can be used when using Alfagrog to attain the same results as a much larger unit filled with inferior and often more expensive filter media.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003eAlfagrog can also be used as decorative aquatic gravel, aquarium landscaping and in a wide variety of applications.\u003cbr\u003e","brand":"Alfagrog","offers":[{"title":"Default Title","offer_id":40199658471559,"sku":"138005","price":19.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/alfagrog-filter-media-e40-15l-127796.jpg?v=1731255829"},{"product_id":"aquael-magic-algae-stop","title":"Aquael Magic Algae Stop","description":"AQUAEL Magic Algae Stop\u003cspan\u003e is offered in the form of a small sachet that can easily fit into any filter container. Thanks to its unique properties, it prevents the growth of floating green algae responsible for the so-called green water effect. By removing algae from the water, it restores its clarity and transparency. The operating principle of AQUAEL Magic Algae Stop is based on efficient chemical absorption of phosphates, nitrites, and nitrates, which constitute a natural breeding ground for algae. The removal of these substances is a very effective way to control the growth of algae without harming the fish, shrimp, and higher plants.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003eAQUAEL Magic Algae Stop\u003cb\u003e\u003cbr\u003e\u003c\/b\u003e\u003cbr\u003e+ antialgal filter media\u003cbr\u003e+ removes floating green algae, restores water clarity\u003cbr\u003e+ content sufficient for up to 100 l\u003cbr\u003e+ lifetime: 6-8 weeks\u003cbr\u003e+ use more packages for larger tanks\u003cbr\u003e\u003cspan\u003e+ for all types of filters (internal, hang-on and canister filters)\u003cbr\u003e\u003c\/span\u003e\u003cbr\u003eApplication of AQUAEL Magic Algae Stop\u003cbr\u003eBefore use, thoroughly rinse the filter media under running water and then put it inside the filter. One package is sufficient for tanks with a capacity of up to 100 liters. The operating life of the product is 6 to 8 weeks. For larger tanks, use two or more packages (in proportion to the tank capacity) or replace the filter media more frequently. NOTE. After 6 to 8 weeks of operation, the filter media becomes saturated with phosphates absorbed from the water and may begin to release them back into the water. To avoid this, remove the filter media and replace it with a new one. The efficiency of the filter media may vary depending on the conditions in the aquarium.\u003cbr\u003e","brand":"Aquael","offers":[{"title":"Default Title","offer_id":40199659389063,"sku":"1921630","price":2.85,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/aquael-magic-algae-stop-489092.jpg?v=1731255901"},{"product_id":"aquael-bioceramax-1600-1l","title":"Aquael BioCeraMax 1600 1L","description":"AQUAEL BioCeraMax 1600\u003cspan\u003e is a \u003c\/span\u003ehigh-performance filter material for effective biological filtration of aquarium water. The fine-pored filter balls provide a huge surface area of approx. 1600 m²\/l for colonizing bacteria of the Nitrosomas and Nitrobacter genera. Pollutants such as ammonium\/ammonia and nitrite are quickly removed and the aquarium water becomes clear, clean and healthy. To maintain optimal filter characteristics, the filter material should be rinsed regularly and replaced after approximately 6-12 months.\u003cbr\u003e\u003cspan\u003e\u003cbr\u003eAQUAEL BioCeraMax 1600\u003cb\u003e\u003cbr\u003e\u003c\/b\u003e\u003cbr\u003e+ biological intensive filter material\u003cbr\u003e+ suitable for freshwater and marine water\u003cbr\u003e+ offers bacteria a huge surface area of 1600 m²\/l\u003cbr\u003e+ easy handling\u003cbr\u003e+ thanks to the ball shape otimal filling in the filter\u003cbr\u003e+ long service life\u003cbr\u003e+ package contents sufficient for up to 200 l of aquarium water.\u003c\/span\u003e","brand":"Aquael","offers":[{"title":"Default Title","offer_id":40199659421831,"sku":"1921639","price":13.15,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/aquael-bioceramax-1600-1l-765915.jpg?v=1731255896"},{"product_id":"aquael-bioceramax-1200-1l","title":"Aquael BioCeraMax 1200 1L","description":"BioCeraMax 1200 is an intensive filter material for effective biological filtration of aquarium water. The fine-pored material provides a huge surface area of approx. 1200 m²\/l for colonizing bacteria of the Nitrosomas and Nitrobacter species. Pollutants such as ammonium\/ammonia and nitrite are quickly removed and the aquarium water becomes clear, clean and healthy. To maintain the optimal filter characteristics, the filter material should be rinsed regularly and replaced after approx. 6-12 months.\u003cbr\u003e\u003cspan\u003e\u003cb\u003e\u003cbr\u003e\u003c\/b\u003eAQUAEL BioCeraMax 1200\u003cb\u003e\u003cbr\u003e\u003c\/b\u003e\u003cbr\u003e+ biologically intensive filter medium\u003cbr\u003e+ for suse in fresh and marine water\u003cbr\u003e+ large surface area of 1200 m²\/l\u003cbr\u003e+ easy to use\u003cbr\u003eü content sufficient for up to 200 l aquarium water\u003cbr\u003e+ long service life\u003c\/span\u003e","brand":"Aquael","offers":[{"title":"Default Title","offer_id":40199659454599,"sku":"1921638","price":10.23,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/aquael-bioceramax-1200-1l-859440.jpg?v=1731255894"},{"product_id":"aquael-zeomax-plus-1l","title":"Aquael ZeoMax Plus 1L","description":"AQUAEL ZeoMax Plus is a granular zeolite filter material. Due to its chemical structure, this zeolite guarantees the absorption of organic impurities of nitrate and phosphate compounds dissolved in the water. AQUAEL ZeoMax Plus creates crystal clear and healthy water in the aquarium. AQUAEL ZeoMax Plus is ready for immediate use and does not require rinsing or other preparation for use. The package contents are added directly to the filter basket or chamber.\u003cbr\u003e\u003cspan\u003e\u003cb\u003e\u003cbr\u003e\u003c\/b\u003eAQUAEL ZeoMax Plus\u003cb\u003e\u003cbr\u003e\u003c\/b\u003e\u003cbr\u003e+ selected zeolite with large absorption capacity\u003cbr\u003e+ easy to use\u003cbr\u003e+ removes organic impurities\u003cbr\u003e+ for clean and healthy water\u003c\/span\u003e","brand":"Aquael","offers":[{"title":"Default Title","offer_id":40199659683975,"sku":"1921640","price":5.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/aquael-zeomax-plus-1l-452703.jpg?v=1731255853"},{"product_id":"aquael-carbomax-plus-1l","title":"Aquael CarboMax Plus 1L","description":"AQUAEL CarboMax Plus is a high quality activated carbon for use in freshwater and marine water aquariums. AQUAEL CarboMax Plus has the form of stable granules, which are dust-free thanks to the developed dust separation technology. Activated carbon used for the production of AQUAEL CarboMax Plus has excellent absorbing properties, thanks to which it absorbs toxins dissolved in water. It neutralizes heavy metal ions and chlorine in tap water, making it usable for aquarium purposes. Activated carbon removes colorants and odorous substances from water and absorbs residues of pharmaceuticals and other chemical substances. AQUAEL CarboMax Plus is ready for immediate use and does not require rinsing or other preparation for use. The contents of the pack are added directly to the filter basket or chamber, or used with a mesh bag.\u003cbr\u003e\u003cspan\u003e\u003cbr\u003eAQUAEL CarboMax Plus\u003cb\u003e\u003cbr\u003e\u003c\/b\u003e\u003cbr\u003e+ highly active filter charcoal\u003cbr\u003e+ removes organic contaminants\u003cbr\u003e+ removes dyes, odors, drug residues, etc.\u003cbr\u003e+ stable pellet form\u003cbr\u003e+ easy to use in freshwater and saltwater\u003c\/span\u003e","brand":"Aquael","offers":[{"title":"Default Title","offer_id":40199659716743,"sku":"1921642","price":8.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/aquael-carbomax-plus-1l-891881.jpg?v=1731255896"},{"product_id":"aquael-phosmax-pro-1l","title":"Aquael PhosMax Pro 1L","description":"AQUAEL PhosMax Pro\u003cspan\u003e is a unique filter medium for chemical filtration of the water in freshwater aquariums and terrarium tanks. AQUAEL PhosMax Pro is designed to chemically absorb phosphates dissolved in water, which are one of the main causes of unwanted algae growth in aquariums. The unique chemical compounds used in AQUAEL PhosMax Pro are characterized by exceptionally good sorption properties. By absorbing the phosphate ions dissolved in the water, algae formation is effectively prevented. AQUAEL PhosMax Pro is very suitable for use in external filters, overflow filters, internal filters with chambers for loose filter media etc.. It is especially recommended for use in tanks with high fish stocking, unplanted aquariums that are not stocked with plants, which otherwise act as natural phosphate absorbers. By using AQUAEL PhosMax Pro, the aquarium water needs to be changed less frequently and algae formation in the tank is effectively prevented.\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003e\u003cb\u003e\u003cbr\u003e\u003c\/b\u003eAQUAEL PhosMax Pro\u003cb\u003e\u003cbr\u003e\u003c\/b\u003e\u003cbr\u003e+ quickly and effectively removes phosphates from the aquarium water\u003cbr\u003e+ deprives algae of the nutrient basis\u003cbr\u003e+ prevents from algae growth\u003cbr\u003e+ improves water quality\u003cbr\u003e+ 1 filter bag is sufficient for up to 200 l for 4 weeks\u003cbr\u003e+ package contents 3x 100 ml, individually applicable in the filter fleece\u003c\/span\u003e","brand":"Aquael","offers":[{"title":"Default Title","offer_id":40199659749511,"sku":"1921634","price":18.2,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/aquael-phosmax-pro-1l-358467.jpg?v=1731255909"},{"product_id":"aquael-phosmax-basic-1l","title":"Aquael PhosMax Basic 1L","description":"\u003cspan\u003ePhosMAX Basic is a unique element intended for chemical filtration of water in fresh water aquariums and terrarium pools. It has the form of grit of very high absorptive properties. It  servers for chemical absorption of phosphates dissolved in water, which are one of the main reasons behind development of burdensome algae in the aquarium.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003eWhat is PhosMAX Basic?\u003cbr\u003e\u003cspan\u003ePhosMAX Basic is a unique element intended for chemical filtration of water in fresh water aquariums and terrarium pools. It has the form of grit of very high absorptive properties. It servers for chemical absorption of phosphates dissolved in water, which are one of the main reasons behind development of burdensome algae in the aquarium.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003eHow does PhosMAX Basic work?\u003cbr\u003e\u003cspan\u003eUnique chemical compounds applied in PhosMAX Basic have perfect sorptive properties. Absorbing dissolved phosphate ions from water, they exceptionally effectively prevent algae development.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003eWhen and where does PhosMAX Basic prove itself?\u003cbr\u003e\u003cspan\u003ePhosMAX Basic perfectly proves itself as a filter bed in canister filters, overflow filters, internal filters with loose media chambers (e.g. TURBOFILTER), as well as in sumps and filtration columns. Is is specially recommended for tanks with large quantities of fish fed with meat foods (e.g. large cichlids, catfish) and devoid of plants being natural phosphate absorbents. Application of PhosMAX Basic allows for limitation of water replacement frequency and effectively prevents development of algae in the tank.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003eHow to apply PhosMAX Basic?\u003cbr\u003ePhosMAX Basic is ready for use out of the box and does not require rinsing or any other additional actions. Place the contents of the package in filtration basket or filtration chamber. In order to ensure optimum application results it is recommended to place the PhosMAX Basic element behind the elements for mechanical and biological filtration.\u003cdiv\u003e\n\u003cbr\u003eHow long does PhosMAX Basic work?\u003cbr\u003eThe manner of operation of the PhosMAX Basic element (sorption) causes it to sustain gradual packing and wear. For the purpose of maintaining optimum filtration properties it is recommended to replace it not less frequently than every 4 weeks. 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For higher bio loads, additional Bio-FX can be used\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Fluval","offers":[{"title":"Default Title","offer_id":40199660241031,"sku":"A1459","price":34.78,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/fluval-bio-fx-biological-filter-media-5ltr-864611.jpg?v=1731256478"},{"product_id":"maxspect-nano-tech-anaerobic-block-pack-of-2","title":"Maxspect Nano-Tech Anaerobic-Block (Pack of 2)","description":"Efficiently removes nitrate from your aquarium\u003cbr\u003eProprietary technology specifically designed to stimulate growth oF anaerobic bacteria.\u003cbr\u003eAnaerobic bacteria completes the nitrification cycle which breaks down nitrate into nitrogen gas, exporting nutrient From the aquarium.\u003cbr\u003e\u003cbr\u003eFor freshwater and marine aquariums.\u003cbr\u003e2 Blocks Treats up to 1,000L \/ 264 Gal\u003cbr\u003e\u003cbr\u003eCompletes the nitrogen cycle through denitrification, by culturing anaerobic heterotrophic bacteria (including species of the genera Paracoccus denitrificans and various pseudomonads), reducing nitrate into nitrogen gas.\u003cbr\u003e\u003cbr\u003eUse directly in sump, stack up two Anaerobic-Blocks horizontally, and place a Denitrification Catalyst in between the blocks, as illustrated above. The Denitrification Catalyst will be slowly used up and should be replaced every 2 months.\u003cbr\u003e\u003cbr\u003eThe Nano-Ceramic beads in the Anaerobic-Blocks are specially treated with our proprietary technology, such that they excel at establishing anaerobic heterotrophic bacteria which strives in anoxic environment.\u003cbr\u003e\u003cbr\u003eThe Anaerobic-Block are carefully manufactured to ensure its quality, the well-designed porous structure of the Anaerobic-Block create the ideal living conditions and environment for bacterial colonies, but will not be decomposed by the bacterial colonies that grows within it.\u003cbr\u003e\u003cbr\u003eDenitrification is becoming more commonly used to remove nitrogen from sewage, municipal, industrial, and agricultural wastewater to counteract the pollution. Various types of denitrification reactors and methods are now used and are effective in removing nitrate from agricultural run off and even manure. The Anaerobic-Blocks integrated this technology in a compact package that'll fit perfectly in your sump.\u003cbr\u003e\u003cbr\u003e\u003cdiv\u003eThe Anaerobic-Block should be cleaned or replaced every 6 months for optimal results, however when cleaning\/replacing old Anaerobic-Block, DO NOT replace all of them at the same time. 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It is suitable for the growth of various microorganisms and forms a stable and highly active biofilm on its surface.\u003cbr\u003eThe three-dimensional void (3D) formed by the sphere and the sphere produces a powerful bactericidal effect. 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MAXOUT PRO removes all toxins, metals and odors in the water column. High capacity carbon removes organics and polishes aquarium water. Proprietary resins unique to the MAXOUT PRO blend aid in the removal of phosphates and reduces the buildup of organics that can cause algae. MAXOUT PRO helps maintain aquarium pH levels by keeping them stable and consistent. Let MAXOUT PRO clear your water and help balance your parameters.\u003cbr\u003e\u003cul\u003e\n\u003cli\u003ePolishes Aquarium Water Quickly and Efficiently\u003c\/li\u003e\n\u003cli\u003eQuickly Removes Toxins and Keeps Trace Elements in Balance\u003c\/li\u003e\n\u003cli\u003eWorks in Fresh and Saltwater\u003c\/li\u003e\n\u003cli\u003ePre-Filled Nylon Bag, No Mess\u003c\/li\u003e\n\u003c\/ul\u003e\u003cdiv\u003eDirections \u0026amp; Dosage\u003cbr\u003e\u003cbr\u003e\n\u003c\/div\u003e\u003cdiv\u003e????????Simply place one mesh filter bag within a high flow area of your filtration system per 100 gallons (378 L) of water volume. 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Proprietary resins unique to the MaxOut PRO Freshwater blend aid in the removal of phosphates and reduces the buildup of organics that can cause algae. MaxOut PRO Freshwater helps maintain aquarium pH levels by keeping them stable and consistent. Let MaxOut PRO Freshwater clear your water and help balance your parameters.\u003cbr\u003e\u003cul\u003e\n\u003cli\u003ePolishes Aquarium Water Quickly and Efficiently\u003c\/li\u003e\n\u003cli\u003eQuickly Removes Toxins and Keeps Trace Elements in Balance\u003c\/li\u003e\n\u003cli\u003ePre-Filled Nylon Bag, No Mess\u003c\/li\u003e\n\u003c\/ul\u003e\u003cdiv\u003eDirections \u0026amp; Dosage\u003cbr\u003e\u003cbr\u003e\n\u003c\/div\u003e\u003cdiv\u003e?Simply place one mesh filter bag within a high flow area of your filtration system per 100 gallons (378 L) of water volume. No pre-rinsing is required. Fritz MaxOut Pro Freshwater is compatible with both canister filters and standard sumps. 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Can be used in both fresh and saltwater aquariums of all sizes.\u003c\/div\u003e","brand":"Fritz","offers":[{"title":"Default Title","offer_id":40199663911047,"sku":"29219","price":17.49,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/products\/fritz-maxout-16oz-208171.jpg?v=1731256518"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/6387\/6487\/collections\/Photoroom_20241022_142135.png?v=1739459414","url":"https:\/\/charterhouse-aquatics.com\/collections\/freshwater-filter-media.oembed?page=4","provider":"Charterhouse Aquatics","version":"1.0","type":"link"}