API pH Down, 1.25 OZ

API® pH DOWN pH regulator lowers pH to make freshwater aquariums more acidic for fish and plants when levels rise significantly. pH is a measure of acidic or alkaline conditions in water, where a value of 7.0 corresponds to neutral pH, values above 7.0 are alkaline, and values below 7.0 are acidic.

Different fish require different pH levels to stay healthy, so it is important to regularly test aquarium water to ensure pH levels are where they should be. pH DOWN pH regulator is fast-acting, colorless, easy to use, and will not cloud aquarium water. And since it is phosphate- and nitrate-free, pH DOWN pH regulator will not encourage algae growth.

Determine the pH level in the aquarium water using the API pH test kit. To lower the pH, add 1 ml per 10 gallons of aquarium water.

Take another pH reading before adding another dose of pH DOWN pH regulator.

Some fish may be sensitive to pH changes greater than 0.2 over a 24-hour period, so changes of this magnitude should be made with great caution.