Seachem Neutral Regulator Fish & Aquatic Life Freshwater Treatment For more than 30 years, aquarium hobbyists have turned to Seachem Laboratories for products designed by chemists and biologists. Seachem Neutral Regulator adjusts the pH to a neutral (pH 7.0) level from either a low or high pH and keeps it there. It softens water by precipitating calcium and magnesium while removing any chlorine and chloramine and detoxifying ammonia. Using Seachem Neutral Regulator makes other conditioning unnecessary. Instructions: Use 5 g (1 level teaspoon) for every 40?80 L (10?20 US gallons) once or twice/month (or as necessary to maintain a pH of 7.0.) Neutral Regulator? may be be initially used daily in cases of high alkalinity until 7.0 is established. It may be added directly to the aquarium at any time. Ideally, it should be used when adding or changing water by dissolving in the replacement water. For precise dosing, use the Seachem Digital Spoon Scale.