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ESV AQUARIUM PRODUCTS CALCIUM HYDROXIDE (KALKWASSER POWDER) Size:3.5 LBS Leave product in place for

$12.98

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Leave product in place for 4 days

Without photosynthesis plants

the output can be doubled without the need for any additional waste water over a single membrane

besides providing good water quality and nutrition

ESV AQUARIUM PRODUCTS CALCIUM HYDROXIDE (KALKWASSER POWDER) Size:3.5 LBS Leave product in place forCalcium Hydroxide (Kalkwasser Powder) Calcium Hydroxide is a proven standard for maintaining calcium concentration and alkalinity in closed marine aquaria. The calcium provided is directly used by calcifying organisms, and the hydroxide ions provided readily convert dissolved CO2 into bicarbonate and carbonate ions, which are also directly used by calcifying organisms. Our product is extremely pure and meets American Water Works Association and Water

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