API pH down freshwater aquarium water pH reducing solution lowers aquarium pH in freshwater aquariums to desired level. Safe for fish and plants. Use when setting up a new aquarium, adjusting pH, or changing water. pH in an aquarium can fluctuate due to fish waste, uneaten food and addition of tap water. It is recommended to test water for pH weekly. API pH Down – Fast & Effective pH Reduction Easily Lower pH Levels for a Healthier Aquarium Environment! API pH Down is a fast-acting, colourless water treatment designed to safely and effectively lower the pH levels in freshwater aquariums by neutralizing carbonate hardness. This treatment is particularly beneficial for adjusting the pH to a more acidic level, which is ideal for fish like mollies, angelfish, and swordtails. Safe for use with aquarium plants, API pH Down is an easy-to-use solution to maintain the optimal water conditions for your fish. Key Features: Lowers pH Levels: Effectively reduces the pH in. Keep out of reach of children.This chemical works to lower phlevels for fish.Do not lower ph any more than 0.2 in any 24 hourperiod.Lowers Ph To...