Seachem Reef Kalkwasser 250gram

PURE: Reef Kalkwasser is a pure calcium hydroxide with unmatched purity and solubility characteristics. MAINTAIN: Calcium hydroxide is used to prepare limewater (kalkwasser) solutions that will maintain calcium concentrations at natural sea water levels. Kalkwasser solutions maintain calcium directly and carbonate alkalinity indirectly. CAPACITY: Reef Kalkwasser’s capacity to perform these functions is dependent on evaporation rate and CO2 concentration.