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The pH scale is a logarithmic one that is used to express the acidity of a solution. It runs from 0-14. The acid portion of the scale runs from 0-6.9 and the basic portion runs form 7.1 -14. A pH of 7.0 is exactly neutral. Each unit on the pH represents ten fold difference in [...]

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The nitrogen-containing amino(NH2) is strong smelling alkaline ingredient, often used in most cleaning solutions. Ammonia is very toxic to all organisms’ cells including your aquarium discus, even at low concentrations. Therefore, your discus fish must get rid of it quickly. Usually, removing nitrogenous waste is not a serious problem for fish living in a much [...]