In the breeding of koi fish, sometimes they will have a rotten body, the reason is likely to be caused by disease. Generally speaking, there are some bacterial diseases, two diseases are more common, namely "acne disease" and "skin mildew disease".
1, pox disease: If the koi body appears some white white spots, and covered with a layer of white mucus and this part gradually expanded, then it is likely to have a "pox disease.". At this time, chloramphenicol is needed to treat the disease, and water should be changed and disinfected to avoid other bacteria remaining in the water. Usually, we can also do a good job of prevention, such as strengthening nutrition, improving their immunity, changing water frequently, and disinfecting with nitrofurazone, etc.
2. Skin mold disease: If a layer of white hair grows on the body of the koi and starts to rot, then it is possible to get "skin mold disease". The harm of this disease is very serious, and it may even cause the koi to die in patches. First of all, the sick koi should be fished out, and then washed with salt water to wash away these white hairs. Then, it is necessary to apply a malachite green solution with a concentration of between 0.1% and 1% to their wounds. After that, you can soak the body of Koi with potassium permanganate solution for about half an hour. Usually in the breeding time can also do some measures to prevent this disease, such as cleaning and disinfection with malachite green solution and so on.
