Water Volume
Knowing your aquarium water volume is extremely useful. You can use it to determine how much water needs to circulate, which filtration equipment to buy, how much water to change, how much medicine or supplement to dose and even how much livestock can safely inhabit your tank.
View CalculatorSand Bed
Whether you're planning a shallow sand bed for a fish-only tank or a deep sand bed for your mixed reef, our CaribSea-powered sand bed calculator helps ensure you buy the right amount of sand for your system. Just enter your aquarium's length, width and ideal sand bed depth to calculate how many pounds of sand you'll need.
View CalculatorSalt Mix
No matter how you feel about mixing saltwater, producing consistent batches of saltwater is important. Pure water has density or specific gravity of 1.0. As salt is added the liquid becomes denser and the specific gravity increases. The specific gravity of saltwater should fall in the range of 1.023-1025.
View CalculatorAlkalinity Supplement
Maintaining proper alkalinity levels in your reef aquarium will help corals grow and thrive! Using our alk calculator you can enter your current alkalinity level, desired level, and the brand of alkalinity supplement you use to determine how much you should dose to achieve ideal parameters.
View CalculatorCalcium Supplement
Calcium is an essential building block for corals, clams, and coralline algae. Using our calcium calculator you can enter your current calcium level, desired level, and the brand of calcium supplement you use to determine how much you should dose to get your water parameters in line.
View CalculatorMagnesium Supplement
Maintaining proper magnesium levels in your reef aquarium will help corals grow and thrive! Using our magnesium calculator you can enter your current magnesium level, desired level, and the brand of magnesium supplement you use to determine how much you should dose to achieve ideal parameters.
View CalculatorGFO Media
Our GFO calculator will tell you approximately how much granular ferric oxide to use inside your aquarium. Just enter the number of gallons of your tank and click calculate. GFO works best when used inside a media reactor but can also be placed inside a filter media bag.
View CalculatorCarbon Media
Our carbon calculator will tell you approximately how much carbon to use inside your aquarium. Just enter the number of gallons of your tank and click calculate. Carbon works best when used inside a media reactor, but can also be placed inside a filter media bag.
View CalculatorElectric Bill
Our aquarium electrical calculator will give you a pretty good idea of how much you'll fork over for your monthly and yearly electricity bills. Just plug in the wattage of your equipment—lights, pumps, protein skimmers, reactors, etc. —and how many hours per day you intend to run each of them and voilà!
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