PH DOWN
API pH DOWN pH adjuster lowers pH to make freshwater aquariums more acidic for fish and plants when levels rise too high. pH is the measure of the acidic or alkaline conditions of water, where a value of 7.0 corresponds to a neutral pH, pH values ​​around 7.0 are considered alkaline, and pH values ​​below 7, 0 are considered acids. Different fish need different pH levels to be healthy, so it's important to test your water regularly to make sure the pH levels fall where they should. pH DOWN The pH adjuster is fast acting, colorless, easy to use and will not cloud aquarium water. Because it does not contain phosphates or nitrates, pH DOWN pH adjuster will not encourage algae growth. sizes 1.25 oz., 4 oz., 16 oz.