-Buffer/ regulator

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 ac...

API® PROPER pH 7.0 easily sets and holds pH at 7.0 in tropical community aquariums, additionally removing chlorine and neutralizing chloramines to ...

API® pH UP pH adjuster raises pH levels in your aquarium to make water more alkaline when levels fall too low. pH is the measure of acidic or alka...

API® PROPER pH 6.5 automatically sets and stabilizes pH at 6.5, and also works to remove chlorine and detoxify heavy metals. It works best with Te...

API® PROPER pH 7.5 automatically sets and stabilizes pH at 7.5, and removes chlorine and detoxifies heavy metals. PROPER pH 7.5 also contains elec...

API® PROPER pH 8.2 automatically sets and stabilizes pH at 8.2 in saltwater, brackish, and African cichlid aquariums without the use of phosphat...