Pharmaceutical grade
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Calcium hydroxide————99.0%－107.5%Highest pharmaceutical grade of kalkwasser. Mix your kalkwasser in an RO water for a drip or a feed system for your saltwater aquarium. No need to worry about any metal or unwanted sediments for you saltwater aquarium.
Buy Calcium Hydroxide 7/lbs tub $ 22.40
Buy Calcium Hydroxide 20/lbs tub $56
Buy Calcium Hydroxide over 35lbs $2.20
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calcium Hydroxide (Kalkwasser) is one of the easiest pharmaceutical grade chemical to add to your saltwater tank (reef or fish with live rocks) Kalkwasser is typically mixed with RO water and slowly dripped into your tank to replenish your calcium, alkalinity and to maintain the PH of your tank. There are other ways of adding Calcium Hydroxide to your tank by mixing a small amount of table vinegar to simply have a higher concentration of Calcium added to the tank.