Summary: If the water is dirty and the fish is injured, it will be infected through the skin. Mainly occurs in spring, water temperature 17-22℃, sometimes in late winter. The mortality rate is generally above 50%.

Symptoms: Scales stand upright, exophthalmos, abdominal distension, ascites, and liquid in the scales. Gently press scales to discharge exudate.

Preventive and control measures:

1, 4/ 10000 salt and 4/ 10000 baking soda are mixed, which can be used to treat vertical scale disease.

2. Furacillin powder 0. 1g was added with 2 gentamicins and dissolved in an aquarium of 80cm×50cm×40cm. Long-term medicinal bath has certain curative effect, especially for sick fish in the early stage of illness.

3. Feeding sulfadiazine (SD) has special effects. The method is to keep the sick fish in 0.5% salt water, stop eating for two days, drain the jejunum contents, and then put them back in clean water, and make sulfadiazine into small particles for feeding. 0.2g per tail, once every other day, 5 times in a row. This method can also be used to prevent stinging diseases in the onset season. A sick fish with ascites should first use a syringe to remove ascites.

4. Salt water bath: soak the sick fish in 2% salt solution for 10 minute, once a week, 3 ~ 4 times in a row, and then continue to rest, and will soon get better or recover.

Experience: Keeping the tank water clean and strictly controlling the temperature difference between water changes (less than 2 degrees) can effectively prevent and treat diseases. Vertical scale disease is difficult to cure, even if it is cured, the scales are not as tight as before, which damages the ornamental value.