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try this highly recommended product instead:
Seachem Tanganyika Buffer is a blend of carbonate salts designed to enhance the natural environment of cichlids by increasing alkalinity, carbonate hardness, buffer capacity, and pH. It is formulated to maintain a pH of 9.0–9.4. For optimum replication of the Tanganyikan environment, use with Cichlid Lake Salt, Cichlid Trace, and NutriDiet Cichlid Flakes.
Adjusts pH to 9.0-9.4. Raises KH as well pH. Will not affect GH
Use 5 grams (1 level teaspoon) for each 40–80 liters (10 to 20 US gallons) of water each day until desired pH is attained and maintained. Thereafter, use as required to maintain pH, usually no more than once every two to three weeks.