When raising fish, water quality is a very important issue, so we need to pay attention to the type of water we use. Generally speaking, pure water is not suitable. First of all, the oxygen content in pure water is relatively low, sometimes unable to meet the needs of fish. Moreover, the microorganism content liquid is relatively low, which is not conducive to the cultivation of beneficial bacteria system. Their hardness is also not suitable, because their hardness is almost 0. And their acidity and alkalinity, generally speaking, weakly alkaline water is more appropriate, but pure water is weakly acidic.
Although we do not use pure water to raise fish in general, we can use pure water in some special cases. For example, some fish belong to soft water fish, which can adapt to the environment of pure water.
If you raise fish at home, it is better to use tap water directly. As mentioned above, there are some harmful effects of using pure water to raise fish, such as low oxygen content, low microbial content and so on. In addition, if you use pure water to raise fish, the cost is relatively high, because the capacity of the fish tank may be relatively large. Therefore, the effect of tap water is better and cheaper.
However, it should be noted that the tap water just flowing out of the tap contains more chlorine, which will be harmful to the health of fish. So it can't be used directly. You can put the tap water out in advance, and then dry it in the sun for a period of time, or let it stand for a period of time. After the chlorine inside is basically eliminated, it can be used.
