AragaMight 16oz Calcium and Aquarium Buffer, This revolutionary new product puts the power of aragonite in a fast dissolving easy to use powder. Pure aragonite, ground to 10 microns for maximum surface area, provides flash re-mineralization of purified water, with no two parts to mix. This non caustic powder supplies both calcium and carbonate buffer as well as full suite of natural trace element, all without ionic residual or by products of any kind. No exact measuring required, no dosing needed. AragaMIGHT! Will stay within safe parameters no matter how much is used, no more wild pH flux. Add 1/2 to 1 Teaspoon per gallon of purified water (RO or RO/DI). Use every time you top off your tank. This 16oz. bottle of AragaMight will remineralize up to 300 gallons of water.