Water hardness is an important measurement when determining the water quality, as well as fish health. This also affects the pH level that may become toxic to fish and other life forms in the water.
What is water hardness? It is the concentration of metal ions like magnesium, zinc, iron, and calcium, which come from rainwater. Most water contain only calcium and magnesium salts.
The two types of hardness are permanent hardness and alkalinity. Both types of hardness is referred to as total hardness. Hardness that comes from the composition of carbonate and bicarbonate ions is called alkalinity or temporary hardness. This is termed as temporary hardness because it can be eliminated by boiling the water. On the other hand, permanent hardness can not be resolved by boiling the water alone because it is the accumulation of sulphates, nitrates, and other hard metals.
Most water supplies have the same hardness … Read More