pH Down - 1-1/4 ounce

Foreign materials such as fish waste, dead vegetation, gravel, aquarium rocks, coral, or heavy aeration may cause changes in your tank's pH.

pH Up and pH Down are designed to raise or lower the pH of the water as needed. Manufacturer recommends that the pH of the tank be measured at least weekly using a pH test kit. 1-1/4 ounces per dropper bottle.