In simple terms the pH value indicates if the water mass is acid, neutral or alkaline. pH is determined on a scale of 0-14. Under 7.0 is acid, 7.0 is neutral and above 7.0 is considered alkaline.
The biggest factor affecting pH is the water that is used to set up the tank and do water changes. The pH of water varies by location. Some other factors can change a tank’s pH without a customer trying or knowing.
Even though most aquarium fish will tolerate a wide range of pH (6.6 - 7.2) without dying, pH will affect the toxicity of the ammonia in your aquarium. When your pH is above 7.0 it combines with ammonia to make a very harmful combination. When your pH is below 7.0 (acidic) your ammonia’s toxicity is reduced.
We sell inexpensive pH test kits that are easy to use and read. If you have trouble determining the results of your pH test, bring in your water and we will test it for you.
Yes. It is safer to have your tank’s pH below 7.0 because it lessens the toxicity of ammonia. In some areas it is difficult to keep your pH below 7.0 because of local water conditions. Some choose not to adjust their pH and work to keep ammonia low, feeling this is easier than trying to manage pH.
This is not a big deal. Owners of swimming pools are doing it all the time!
If your pH is above 7.0 and you want to lower it:
If you want to raise your pH: