Liquid Neutral Regulator® adjusts pH to neutral (pH 7.0) from either a low or high pH and maintains it there. It softens water by precipitating calcium and magnesium while removing any chlorine, chloramine, and detoxifying ammonia. The use of Liquid Neutral Regulator® makes other conditioning unnecessary. To lower pH below 7.0 use Liquid Directions Use 1 capful (5 mL) for every 10 L (2.5 US gallons) once or twice a month (or as necessary to maintain a pH of 7.0). Liquid Neutral Regulator® may be added directly to the aquarium at any time. Very hard water may require a double or triple dose. Contains phosphate buffers and conditioning agents. Safe for all freshwater fish acclimated to neutral pH.