Don't take the quality of your tap water for granted. If you draw your water from a well, nature may not be providing you the perfect balance. 

Testing your water parameters is an important method of foreseeing problems in your aquatic ecosystem before they result in catastrophe. 

Once you understand what water chemistry is and how important it is to your aquarium, you must learn how to properly maintain it. This article gives a basic overview of this. 

…imperative that you have an understanding of the water parameters that affect fish health, as well as the importance of water testing. Water testing cues you to what's happening in the system at any given…