Anagent to maintain constant carbonate hardness in coral reef aquaria.Dissolve 80 g of the product in 1000 ml of deionized water.Tomaintain ion equilibrium, use Calcium, Magnesium and Reef MineralSalt Aquaforest products as well. 10g KH Buffer increases by about3,3 dKH (Alk. 1,18meg/l) in 100L.100ml KH Buffersolution increases by about 1,60 dKH in 100L of water.The recommended KH level in coralreef aquaria is6.5- 8.0 dKH. Contains NaHCO3. US: Dissolve 1.28 cupsof the product in 1 US gal. of deionized water.