CrystalClear pHusion pH Reducer fuses pH lowering properties with natural electrolytic supplements to safely lower pH levels in pond water at no more than 0.2 points per application. It adds much needed electrolytes to help fish maintain a strong slime coat and healthy appearance. pHusion is phosphate and nitrate free! Since phosphate is the primary food source for algae, this means that hobbyists can lower the pH of their ornamental pond to the safe range of 6.5 - 9.0 without contributing to unwanted algal growth.
pH - The measure of hydrogen ions present in an aquatic system. It can also be classified as a measure of acidity or basicity of water, with 7.0 being neutral. pH will increase with plant populations and decrease with excessive organic matter and animal population. Low pH water can harms gills, and high pH can harm fins and gills as well as contribute to algal growth. Pond pH generally follows a daily cycle of being the lowest just before dawn and highest in the afternoon due to photosynthesis and aquatic life respiration.
25 lb treats 400,000 gallons.