fish tank, the first consideration is to divide the tank. If the feeding density is relatively high, the requirement for dissolved oxygen is high, because the oxygen pump has stopped working, so the fish in the tank will soon be anoxic, in order to avoid this situation, it is necessary to divide the tank. If you have a spare fish tank, it's best. If you don't, you can consider putting small fish in plastic boxes or buckets, and big fish in tanks.
. If there is a lid on the fish tank, the lid needs to be removed after the power failure. The purpose of this is to make the water surface contact with the air, so as to provide dissolved oxygen and alleviate the lack of oxygen. However, it should be noted that if you raise tropical fish, it is better not to take off the lid, because it will lose the effect of heat preservation, once the temperature drops, the fish will encounter more problems.
In addition to dividing the tank and opening the cover, you can also choose other ways to increase the oxygen in the water, among which changing the water is a good choice. It should be noted that the change of water should not be too frequent, and the new water will also stimulate the fish, thus affecting its health.
power failure. If you find that the fish has a slight floating head, you need to change the water. This can prolong the cycle of changing the water as much as possible to avoid stimulating the fish. If there is no one at home, it is better to change the water once in the morning so that the water quality can be maintained.