Concentrated liquid alkalinity (KH) buffer for marine and reef aquariums. Alkalin8.3 is over 50% stronger than most competing products. This highly effective solution increases and maintains alkalinity to a desirable level. Formulated by a marine scientist, Alkalin8.3 provides a source of carbonates important for developing skeletal material in reef-building organisms. Continued addition of Alkalin8.3 also raises pH and maintains it at 8.3. Free of phosphate, silicate, and organic material. 17 oz (500 ml) treat up to 3,000 gallons.
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