The fish body is rough, the scales are open, and it is loose and spherical. Scales are swollen at the base, and there is translucent or bloodshot mucus in the skin, which is often accompanied by congestion at the base of fins, exophthalmos, skin congestion and ulceration, abdominal swelling, body inversion and upward abdomen.
Treatment method: 1, soak the sick fish in 2% salt and 3% baking soda solution for 0/0 minute, or soak the sick fish in 3% salt water for 0/0 ~15 minute.
2. Crush the edema bubble of the scale capsule, scrub it with 10% warm saline, apply tincture of iodine, and then inject 2 ml (0.4 g) of sulfathiazole sodium solution into the muscle.
3. Add 5% chlortetracycline or oxytetracycline to the feed for 3-5 days.
These are all from previous books.