Alabaster and Lloyd (1980) identified the pH range that is not directly lethal to freshwater fish as. 5.0-9.0. With few exceptions, pH values between 6.5 and 9.0 are satisfactory, on a long-term. basis, for fish and other freshwater aquatic life.
Benefits Of Papaya Seeds. 1  Improves liver health. 2  Boosts kidney health. 3  Destroys internal parasites. 4  Acts as a natural contraceptive. 5  Aids digestion.
Why pineapple is good for you. Pineapple is a sweet, sharp and juicy source of vitamin C is also a great aid to digestion.