a, Koi was scared

1, reason: Koi's courage is very small, easily frightened.

2. Solution: Try not to scare the koi.

2. Small activity space

1. Reason: The space in the fish tank is too small or there are too many fish in the tank, and the activity space of the koi is limited, so the koi will jump out of the tank.

2. Solution: Change the big fish tank or separate tanks, and control the density of the fish in the tank, not too big.

3. Too much or too little water in the tank

1. Reason: If there is too little water in the tank, the koi will jump the tank because of restriction. If the tank is too full of water, Koi are also easy to jump tank.

2. Solution: Control the water level in the tank, neither too much nor too little, and the water depth is 50 ~ 60cm.

4. Parasites in the fish

1. Reason: There are parasites in the koi, which will cause it to be irritable and jump into the tank.

2. Solution: Fish out the brocade carp with parasites separately for treatment, remove the parasites, and prevent and control the infection of other fish.

5. Not adapting to the new water body

1. Reason: The new koi will jump the tank because they are not familiar with the environment.

2. Solution: Pull a net or add a lid to the fish tank, and let the koi stay in it for a few days. If they get used to it, they will not jump.

6. The oxygen content in the water is too high or too low

1. Reason: The oxygen content in the water is too high, which will cause the koi to be overexcited and jump the tank. If the oxygen level in the water is too low, the koi will jump because of the lack of oxygen.

2. Solution: Control the oxygen content in the cylinder and keep it at 5-7 mg/l.