Yes.

The most common feature of koi scaling is that some or all of the scales on the koi's body surface are pine cone shaped, and the surface of the diseased fish is rough. The base of these scales is edematous, and a translucent or blood-containing fluid exudes from the body, causing the scales to stand up.

When a little force is applied to the scales of the sick fish, the liquid will be ejected from the base of the scales, and in some cases, the base of the fins and the skin of the sick fish will be congested, and the eyeballs will be bulging out. And these sick fish move slowly, swim out of the group, in severe cases breathing difficulties, reaction is slow, well may float on the surface of the water.

Expanded information:

Precautions:

1, before the warming of the koi to strengthen the fertilizer work, try to shorten the period of suspension of food, and enhance the resistance of the fish, can effectively prevent this disease. prevent this disease from occurring.

2, maintain good water quality, maintain an effective nitrifying bacteria system, so that the water body can have sufficient sunlight.

3. Ensure that the feed is clean and healthy.

4, keep the water temperature stable.

5, in the season of large changes in water temperature and high incidence of fish disease, you can regularly use sodium bicarbonate solution and salt solution to soak the fish for 5-10 minutes (tank disease prevention of salt concentration is three thousandths of a percent, a separate fish out of the bicarbonate concentration of three percent of the soaked fish, salt concentration is two percent), or directly in the tank under the sea salt and vitamins C, E, D, conducive to improving the koi system and prevent the occurrence of disease.

Baidu Encyclopedia - Koi Fish

Baidu Encyclopedia - Scale Disease

Baidu Encyclopedia - Scale Disease

Baidu Encyclopedia - Scale Disease