Why does koi fish always jump out of the fish tank?

The main reasons for koi fish's cylinder jump are as follows:

1. When the dissolved oxygen in the water is high, koi fish will be highly active and jump into the tank, and the "Carp Dragon Gate" will be happy and active.

Koi fish has formed a fixed diet habit. Before feeding time, he would jump into the jar to eat.

3. Inadaptation to the new environment. Mainly in New koi fish.

4. Be frightened. Koi fish is very timid. Generally, when fishing for water, he is easily frightened and jumps up.

5. There are parasites on fish. If the fish has parasites, it will upset the fish and jump out of the tank.

6. The oxygen content in the water is not high. Koi fish likes to jump out of the water in an anoxic environment.