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Makes aquarium water acidic; contains no phosphates. pH is the measure of acidity of water. Proper testing and adjustment of aquarium pH is essential for fish health, disease resistance, good fish color, and successful breeding. To lower pH, add 2 drops of pH DOWN for each U.S. gallon of aquarium water. If fish are present in the aquarium, do not change the pH more than 0.2 in any 24-hour period. Read package carefully.

Water Conditioner - made in the USA