An agent to maintain constant carbonate hardness in coral reef aquaria. The recommended KH level in coral reef aquaria is 6.5- 8.0 dKH. To maintain ion equilibrium, use Calcium, Magnesium and Reef Mineral Salt Aquaforest products as well. Application: Dissolve 80 g of the product in 1000 ml of deionized water. 10g KH Buffer increases by about 3,3 dKH (Alk. 1,18meg/l) in 100L. 100ml KH Buffer solution increases by about 1,60 dKH in 100L of water. Contains NaHCO3.