< h2 style= "white-space: normal; "> 1. Why does koi fish jump? < p style=" white-space: normal; "> 1. Environmental discomfort: The newly bought koi fish jumps into the cylinder, probably because it does not adapt to the new living environment. In view of this situation, breeders need to 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.

< p style= "white-space: normal; "> 2. The space is too small: Koi is relatively large. If the breeding density is too high, it will affect their activities and lead to jumping. Or if there is too little water in the fish tank, they will jump out of the tank because they are restricted. Breeders need to reduce their density or replace large fish tanks to ensure their normal activities.

< p style= "white-space: normal; "> 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. For this, an oxygen pump can be prepared to pump oxygen into fish tanks 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.

2. Will koi fish fall to death when jumping into a cylinder

Koi fish generally does not fall to death when jumping into a cylinder. Koi fish are lively and like to jump out of the water. If the fish tank has no lid, it can easily jump out. At this time, it is necessary to put the fish back into the water in time to avoid its death. The reason why the cylinder jumps is usually related to the environment, which may be that the water quality is not very good, the space is too narrow, or the oxygen in the water is insufficient. According to different situations, there are different solutions.