Calcium hydroxide in water. Used in marine tanks to replace calcium used by hard corals and clams to build calcerous skeletons. The preferred way to maintain calcium levels in a marine tank.
A term referring to water with dissolved calcium hydroxide. It is used to add inorganic calcium to the water.
German word meaning calcium water, kalkwasser is a mixture of calcium hydroxide in water. The ph is very high (around 12.0) and it is used as makeup water to replace calcium used by hard corals and clams to build calcerous skeletons.