Methods to prevent fish from fighting:

1. Fish themselves have a strong sense of territory: when you find fish fighting, you can take the fighting fish out and separate them. Raise and then observe the remaining fish. If the remaining fish do not fight, raise them in two batches.

2. Increase the stocking density: If the stocking density is too small, it will also cause fish to fight for territory. At this time, the owner can increase the stocking density appropriately. When the space inside the fish tank is not enough to divide the territory, the war between the fish will gradually cease.

3. It is better to keep ornamental fish alone rather than in pairs: When two fishes fight, one fish will always separate their attention. Over time, they will naturally get used to each other and stop fighting. Or you can raise other fish at the same time to spread the energy of the fish.

4. Change the tank: The owner can change to a larger fish tank, because some fish have a strong sense of territory and will fight for occupying the territory.

5. Increase the amount of feeding: Some fish will fight because of fighting for food, so the owner can increase the amount of feeding.

6. Isolated breeding during the breeding period: Some fish are more aggressive and like to chase and bite other fish, so the owner must raise them in isolation. Moreover, during the mating season, some male fish not only attack members of the same sex, but also attack female fish. The main reason is that there are too many male hormones and nowhere to vent them.

7. Set up obstacles: It is also possible to set up obstacles, but it is not particularly recommended because some large ornamental fish are not adaptable at all, but it is still OK for small and medium-sized ornamental fish.

8. Change fish or species: If the above measures cannot change the outcome of the ornamental fish fight, we can only make appropriate adjustments and change species. Through a series of adjustments, we can change the suppression of existing species in the fish tank. The situation may be alleviated.