Seachem Marine Kalkwasser 500G
Kalkwasser is the German term for limewater, a saturated solution of calcium hydroxide in water. Kalkwasser is used in the marine aquariums to replenish calcium and maintain alkalinity, benefiting corals, clams, and calcareous algae that build skeletons, shells, and crusts from calcium carbonate.
Further benefits of this solution are that it helps maintain aquarium pH and precipitates phosphates. It also reacts with fatty acids and other organic compounds, and this plus a naturally boosted pH enhances protein skimming.
It thus promotes a cleaner, healthier aquarium environment.