Koi fish also has a chance to live if it jumps and falls to bleed, so long as it is put back into the tank in time. If there are other fish in the fish tank, it should be raised separately for a period of time to avoid being bullied by other fish. There are many reasons for jumping the tank, which may be because the environment is uncomfortable, which causes the fish to be frightened, or because the space is too small, which causes it to jump out, or because the oxygen content is low, the fish feels unable to breathe and wants to jump out of the water.

1. Environmental discomfort: The newly bought koi jumping cylinder may be because it does not adapt to the new living environment. When they enter the new environment, they will feel uneasy, afraid and want to escape, so they will jump cylinder. At this time, put a lid on the fish tank, then keep the surrounding environment stable and wait for them to recover on their own. During the recovery period, the breeder needs to stop feeding.

2, the space is too small: Koi is relatively large, and if the breeding density is too high, it will affect their activities, resulting in jumping. Or if there is too little water in the fish tank, they will jump out of the tank because they are restricted. This can be done by reducing the density of breeding or replacing large fish tanks, so as to ensure their normal activities.

3, too little oxygen: Koi has a large demand for oxygen. If the dissolved oxygen in water is insufficient, they will jump out of the cylinder because of lack of oxygen. Therefore, it is necessary to prepare an oxygen pump to pump oxygen into the fish tank and replenish them with dissolved oxygen. However, it should be noted that although koi fish has a high demand for oxygen, breeders should not take too much oxygen. Usually, the dissolved oxygen in water can be controlled well, and it is best to use 5-7 mg per liter.