The pH level or alkalinity of the water is crucial to a
healthy water body. pH can affect chemical solubility and biological
availability of nutrients and oxygen supply. In the more extreme ends of the pH
scale, it can actually determine whether your plants and fish live or die. pH
is the lifeblood of water quality and it is no surprise water testing labs
often invest in expensive pH dedicated equipment. Not only should your pH
levels be suitable (in most freshwater cases as neutral as possible around
6.5-7.5), but it should also be stable. pH fluctuations can cause shock to
ecological processes and can be a stimulating factor for disease outbreaks.
Fortunately, there are pH up and down control agents to work alongside your
water testing should levels be out of the desired range.