A carp that has been raised for two years jumped out of the fish tank and died. Is there any bad sign?

This is a normal scientific phenomenon and has nothing to do with symptoms.

(1) Reasons for koi to jump out of the tank:

1. When the dissolved oxygen in the water is very high, koi will be highly active and jump out of the tank, otherwise it would not happen What about the saying "carp strip dragon gate".

2. Change in feeding habits. Some koi have formed a fixed feeding habit and will jump out of the tank if they are not fed by the feeding time.

3. Unadaptation to the new environment. Mainly in the new Koi Yudang.

4. Being frightened. Koi fish are very timid and are usually easily frightened and jump out of the tank when fishing for fish and changing water.

5. There are parasites on fish. If there are parasites in the fish's body, it will make the fish irritable and jump out of the tank.

6. The oxygen content in the water is not high. Koi fish like to jump out of the water when there is insufficient oxygen.

7. The density of fish farming is too high and the space is too small. If the density is too high, koi fish will not have enough space to move and will jump into the tank.

8. There is too little water in the fish tank. If there is too little water in the fish tank, the koi fish will be restricted because there is not enough water and will jump out of the tank.

9. The fish tank is too full. If the water for raising koi in a fish tank is too full, koi fish will easily jump out of the tank due to their natural tendency to jump.

(2) Prevention of koi jumping from the tank

1. Cleaning and disinfection of koi. Generally, before entering the koi tank, the fish body should be cleaned and then disinfected.

2. Add sterilizing water or medicated bath. For koi that have been infected with parasites in the tank, sterilizing water can be added to the tank, or the koi fish can be given a medicated bath separately to prevent the koi fish from being infected by bacteria. Infect.

3. Keep the amount of dissolved nutrients sufficient. Keep the amount of dissolved oxygen in the water sufficient. If it is cloudy, there is a high possibility of jumping into the tank due to lack of oxygen. If necessary, you can buy an oxygenating device and add oxygen frequently.

4. Adjust the breeding density so that the density is not too high.

5. Feeding water should not be too little or too full. Usually, the feeding water should be placed at a certain level, neither too low nor too high. The lowest water level is twice the height of the fish, and the highest water level is when leaving the tank. Mouth 5-10 drop.

6. Pull the net or cover it.

For fish tank-like koi, the most fundamental way for the koi to jump out of the tank is to first pull the net or add a cover. As long as the net or cover is pulled, the dangerous things that may happen after the koi jumps out of the harbor can be avoided. But it does not mean that it is enough to just pull the net and cover it, but also to find out the cause of the cylinder jump to achieve real prevention. However, the capping of the net must be done. Do not forget to cap the net and cause the koi fish to jump out of the tank.

(3) Treatment of koi after jumping out of the tank

1. If the fish has just jumped out and is still struggling on the ground with strength, it should be picked up immediately and put into the original pool water, and Check the amount of dissolved oxygen in the water. If the dissolved oxygen is insufficient, add oxygen.

2. If the fish no longer struggles violently and its mouth still opens and closes, quickly take the original feeding water and add half of the new water into the shallow basin, and use an air pump to provide oxygen. At this time, the fish can still breathe on its own. Most can recover on their own.