SeaChem Discus Buffer helps to replicate the ideal Discus environment (low pH & low GH (General Hardness)). Discus Buffer will lower pH and keep it lowered. Discus Buffer also softens water by precipitating calcium and magnesium.
Directions: Use 1 level teaspoon (7 g) for every 40-80 L (10-20 gallons) daily until intended pH is reached. Thereafter, use once a month or with water changes as required to maintain pH