The white ulceration on the fish body indicates that it is sick, and it is a bacterial or fungal disease. This disease is contagious. In order to prevent other fish from being infected, it is necessary to fish out the sick fish and raise them in isolation. In this way, it is also convenient to prescribe medicine for treatment, and it will not affect other fish.
When the fish is sick, it must need to change the water regularly. There are too many germs in the water, which will lead to the deterioration of the fish's condition. By changing the water, the number of germs can be reduced. In addition to changing water, it is also necessary to raise the temperature appropriately, which can accelerate the metabolism of fish and help their recovery.
If the fish's condition is serious, it needs to be treated with medication. Prepare a small container, put water in it, then pour potassium permanganate, and adjust the solution to light pink. After fishing out the sick fish, soak it in the solution for about 20 minutes, once a day.
The fish body will be white ulceration, mainly because the body is injured, or stimulated, if you want to prevent, do not put sharp objects in the fish tank, while maintaining the water temperature. In addition, you can prepare an ultraviolet lamp, a few hours a day, can also play a bactericidal effect.