American KH Buffer 7.5 helps your aquarium emulate the alkaline waters preferred by Central American Cichlids. It increases the KH (carbonate hardness) of water and stabilises pH, reducing fish stress and contributing to the good health and longer life of your fish. American KH Buffer 7.5 also adds minerals which assist with fish fertility and egg production. Contains chemically clean phosphates, which should not exacerbate algae. 

Directions: 1 rounded teaspoon or 8g to 10 litres of water will raise KH by approximately 8dKH or 143ppm. 1 rounded teaspoon or 8g to 20 litres will raise KH by approximately 4dKH or 72ppm. PH will stabilise to around 7.5.