Many beginning aquarium owners dread learning about water chemistry. But just by knowing the basics, you can greatly improve your track record in rearing healthy fish. Since water quality has a direct impact on the health of your fish, it's important for aquarium owners to understand basic water chemistry in order to correctly and safely adjust it. Aquarium owners who learn the basics of water chemistry find it much easier to maintain a healthy and safe environment for aquarium fish.
The pH level of an aquarium is one of the most important things to regularly monitor. It often can give a warning when something is about to, or has, gone wrong with your tank. Maybe you forgot to treat the new water you added and chlorine killed the beneficial bacteria in your tank, it happens and by using these test strips often, you can notice there is a problem right away and attemot to deal with it. These strips give an accurate measure of your current pH but always be sure to know your fish and what pH water they prefer. Some like it a little more alkaline (higher pH) some a little more acidic (lower pH) but generally 7.0 is where you would want a community tank to be, and there isn't much easier a way to test then with a quick dip of these strips.