API Proper pH 8.2 Powder, 7.1 OZAPI PROPER pH 8. 2 automatically sets and stabilizes pH at 8. 2 in saltwater, brackish, and African cichlid aquariums without the use of phosphates. pH is the measure of acidic or alkaline conditions in water, where a value of 7. 0 corresponds to a neutral pH, pH values above 7. 0 are considered alkaline, and pH values below 7. 0 are considered acidic. Different fish need different pH levels to be healthy, so it is important to test your water