Red and white grass goldfish often suffer from white cloud disease. White cloud disease is usually caused by parasites, including mouth filariasis, flagellates, and chitosan. Due to the reproduction of the parasite, the secretion of the skin increases, so that a white mist-like object will appear on the body surface.

After finding that the red and white grass goldfish is sick, it is necessary to treat the disease Take out the red and white grass goldfish in time, put it in a 0.002% potassium permanganate solution for cleaning, and generally take it out after 10-30 minutes. It can also be washed with salt water. The washing time is related to the degree of disease. In severe cases, it takes about an hour to wash.