Aquarium Pharmaceuticals pH Up (1.25 oz.)

Foreign material such as fish waste, dead vegetation, gravel, aquarium rocks, coral or heavy aeration may cause changes in pH levels. Therefore, the pH level should be tested every week.The following pH levels are recommended for freshwater tropical fish:Egg-laying fish: 6.6 to 6.8 (slightly acidic)Community aquarium: 7.0 (neutral)Live-bearing fish: 7.2 to 7.6 (slightly alkaline)