API High Range pH Test Kit (160 test)

pH is the measure of acidity of water. A pH reading of 7.0 is neutral. A pH higher than 7.0 is alkaline, and a pH lower than 7.0 is acidic. Maintaining the aquarium at the proper pH ensures optimal water quality. The pH should be tested weekly, since natural materials in the aquarium (such as fish waste and uneaten food) can cause pH changes.

Recommended pH Levels
A pH of 7.5 is ideal for most live-bearing fish, such as mollies and swordtails. Goldfish will also thrive at a pH of 7.5. African
cichlids prefer a pH of 8.2. Marine fish and invertebrates require a pH between 8.2 – 8.4. To raise or lower the pH of a freshwater
aquarium, use Seachem Malawi/Victoria Buffer may be used to automatically adjust and hold pH at 8.2   may be used in African cichlid and saltwater aquariums.