1. Poor water quality: When changing water for zebrafish, if the water quality is relatively poor, it is very easy to die. For example, the chlorine content in the water is too high, if the water used is not dried in advance, there will be a large part of chlorine in the water, which will affect its growth. Or there are more dirty things in the water, which will also affect its growth.
2. Change the water frequently: Generally, the water should not be changed too frequently. Some people may change the water once every 1-2 days. In this way, the fish will die because they can't stand it. In addition, if there is no filtration equipment in the fish tank, the water quality will change greatly, which will also lead to the death of fish.
3. The amount of water is too large: When changing the water every time, you should control the amount of water. If you change all the water in the fish tank at one time, the fish will die because they can't adapt to the new water environment.
In the process of changing water, the temperature difference between the new water and the old water should not be too large, otherwise it is easy to stimulate the death of fish. New water can only be used after drying, so that the chlorine in the water will be reduced. Water can be changed once a week according to the situation, do not change too often. Moreover, when changing water, it should retain part of the old water, basically replacing one third of the water.
