A smart and inexpensive alternative to calcium reactor systems. Liquid Reef is a complete source of elements directly used by corals, clams, and other reef-building organisms to create skeletal material and grow. Liquid Reef provides calcium, strontium, magnesium, and potassium in approximately the same ratios in which they occur in aragonite. A very strong source of carbonates derived from aragonite to increase alkalinity and help stabilize pH. 17 oz treats up to 5,000 gallons.
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