API pH Down lowers freshwater aquarium pH with a phosphate-free formula. Community tropical fish thrive around pH 7.0, goldfish and livebearers prefer 7.5, while Amazonian species like angelfish do best at 6.5-6.8 - pH Down helps you hit the right target and is safe for fish and plants.

Key Features

Phosphate-Free Formula: Safely lowers pH without adding algae-feeding phosphates.
Stabilizes Fluctuations: Helps counter pH drift caused by fish waste and uneaten food.
Fish & Plant Safe: Formulated to be safe for both livestock and live plants when used as directed.