Above are links to available calculators. 3reef is continously looking for more aquarium-related calculators. If you know where to get more or are great at math and are willing to help, please let us know. *Thanks to 3reef member ryugraphix for the volume and fish capacity calculators! Thanks to 3reef member wildreef for the tip on the flow rate calculator. Thanks to Jose for letting us link to his awesome additives calculators. Thanks to Orion7_11 and ReefSparky for the total water volume calculator.