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Calcium hydroxide, USP (Kalkwasser). Calcium hydroxide ("Kalkwasser"), >99.0% purity (exceeds purity of most USP-graded material). Provides calcium, increases pH. Kalkwasser application is an integral part of an effective pH-management and coral growth regimen in dedicated coral culture systems.


This pack contains sufficient calcium hydroxide to prepare 50 gallons of saturated solution (6.5 g per gallon).

Ca(OH)2 Kalkwasser 325 g (50 gallon pack)

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