Carbonates help to stabilize pH within saltwater aquariums due to their buffering capacity.This product must be used alongside our Reef Essential Aragonite A & Reef Essential Aragonite C supplements as together they will provide the required major, minor and trace aragonite elements.Recommended alkalinity concentration = 7.4-10.5dKH (132-188ppm).Contents: Deionised water Carbonate, Hydrogen Carbonate & Buffers Instructions:Shaking is not required, however, if product has been left standing for a length of time invert bottle 3-4 times before using.Directions:Add product to high water flow. This product must be used in reef aquariums and can be used on a dosing pump.Dosing:Lightly stocked = 0.50mL/100L per dayModerately stocked = 0.75mL/100L per dayHeavily stocked = 1.00mL/100L per dayOr as required to maintain alkalinity between 7.4-10.5dKH (132-188ppm).Note: 1mL/100L will raise alkalinity by 0.1dKH (1.8ppm).