Reef Salt Calculator
Easily calculate the exact amount of salt needed for your reef aquarium based on tank volume and target salinity. Includes preset values for popular salt brands like Red Sea Coral Pro, Tropic Marin, and more.
Reef Salt Calculator
Important Note on Accuracy
Please note that the calculated salt requirements are intended as guidelines. Minor adjustments may be necessary due to natural variations in salt mix moisture content and the influence of water temperature on salinity readings.
For the most reliable results, always heat your RO or RO/DI water to 75–78°F (24–26°C) prior to mixing. Use a refractometer—preferably calibrated with a marine standard—to verify salinity levels. Add salt gradually, in small increments, to the entire water volume being prepared, and adjust as needed until your desired salinity is achieved.
For optimal precision, we recommend weighing the salt mix with digital scales rather than measuring by volume.
Shop Marine Salt
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Nyos Pure Marine Salt
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Fauna Marin Sea Salt 25KG including free ICP
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H2Ocean Dosing Formula Salt 23Kg
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Tropic Marin Pro-Reef Marine Salt
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Red Sea Coral Pro Marine Salt
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Red Sea Salt
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Instant Ocean Marine Salt
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Fauna Marin Professional Sea Salt 10KG
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Help Guides
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Troubleshooting Salinity Issues in Your Marine ...
Maintaining stable salinity in your reef or marine tank is one of the most important — yet often underestimated — aspects of successful aquarium keeping. Unlike freshwater tanks, marine environments...
Troubleshooting Salinity Issues in Your Marine ...
Maintaining stable salinity in your reef or marine tank is one of the most important — yet often underestimated — aspects of successful aquarium keeping. Unlike freshwater tanks, marine environments...
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How to Mix Reef Salt Correctly for Your Aquarium
Whether you’re setting up a new reef tank or performing routine maintenance, knowing how to properly mix reef salt is essential for maintaining stable, healthy marine water conditions. In this...
How to Mix Reef Salt Correctly for Your Aquarium
Whether you’re setting up a new reef tank or performing routine maintenance, knowing how to properly mix reef salt is essential for maintaining stable, healthy marine water conditions. In this...
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Understanding Salinity in a Reef Tank: Causes, ...
Maintaining proper salinity levels is crucial for the health and stability of your reef tank. Salinity, the measure of salt concentration in the water, directly impacts the well-being of your...
Understanding Salinity in a Reef Tank: Causes, ...
Maintaining proper salinity levels is crucial for the health and stability of your reef tank. Salinity, the measure of salt concentration in the water, directly impacts the well-being of your...
