1. Replacement of fish tank: There are many reasons for parrot fish fighting, and the common reason is insufficient space. They have a strong sense of territory. If they don't have enough living space, they will fight. If they fight frequently, the breeder needs to replace a large fish tank to make the breeding density smaller, which can reduce the number of fights.

2. Adequate food: Parrot fish may also fight for food. They eat a lot. If the breeder doesn't feed enough food, they will snatch food. If breeders want to avoid fighting, they should be fed more food. At ordinary times, it can be fed regularly and quantitatively, which can not only ensure sufficient food, but also develop good eating habits for parrot fish.

3. Put in a shelter: If the parrot fish fights seriously, the breeder can put a shelter in the fish tank, so that the injured fish can escape briefly. If the effect of putting them in the shelter is not good, the breeder needs to keep them separately.

If the parrot fish injuries are not serious, the breeder only needs to add some coarse salt into the fish tank. Because salt has the function of sterilization and disinfection, it can reduce the infection. As long as there is no bacterial infection, parrot fish can recover by its own resistance.

If the parrot fish is seriously injured, the breeder needs to fish them out and breed them separately. And use oxytetracycline or potassium permanganate solution to clean the affected area to avoid infection.