Water quality, pH and fish health. What is pH and why is it so important to fish health and water quality? The simplest explanation is that it is a measurement of the acidity or alkalinity of a substance – in this case pond water. Changes in either can exert a powerful influence over both water ..
Water quality and fish health The single, most important factor affecting fish health and influencing disease in fish ponds and tanks is water quality. Raised levels of ammonia or nitrite, sub-optimum pH and water hardness levels or a high level of organic pollution will be stressful to koi and other fish; predisposing them to disease. ..