It depends on the softness or hardness, soft water e.g amazon river is acidic so below pH 7 and is caused by things like decaying vegetation and the elements present in the surroundings. Hard water e.g african lakes are alkali so above pH 7, this is again caused by surrounding areas and elements such as calcium which make it alkali. In the aquarium it can be controlled by chemicals which you can buy at pet shops.
There are a couple of things you can do to control the pH of the water for tropical fish. You can for example drain the water and start over.
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Go and ask some one who knows about it
No. Rather, the CO2 concentration controls the pH. Other factors control concentration, such as temperature, pressure, contamination, and availability of CO2.
Sodium bisulfate is used in water treatment as a pH adjuster to control the acidity and alkalinity of the water. It can help in neutralizing pH levels, removing heavy metals, and controlling odors in water.
Simply because it's stable, and it's pH neutral.
pH stands for "potential Hydrogen". In the field of civil engineering, pH is a factor that is considered in corrosion control, coagulation and water softening. All the pH related processes are controlled by civil engineers. pH test is beneficial to check the A controlled value of pH is desired in water supplies, sewage treatment and chemical process plants.
PH can be easily changed. Many water sources around the world usually come from alkaline or hard water. In order to increase pH, you could use chemicals or put crushed rock and shells to make the water alkaline. In order to decrease the pH, you could also use pH, or inject CO2. Another way of decreasing pH is to add drift wood to the aquarium, though driftwood tends to make the water color tea like.
You will need to test the PH, KH & GH to find out whether your water is soft or hard. If your PH changes easily in the tank, then you can add crushed coral to help it rise and be stable, or peat moss to help it lower and be stable
Pure water has a pH of 7, which is considered neutral on the pH scale.
A pH control is good, but that doesn't mean you shouldn't test the water. Get a good Taylor Reagent DPD K-2006 test kit.Stay on top of your chemical readings as they can get away from you.