1, pathogens and epidemic situation
The disease is caused by microscopic trichodinosis and significant trichomonad parasites, commonly found in overwintering fish.
2. Symptoms
Diseased fish gills secrete a lot of mucus, severe breathing difficulties occur, the fish body weight loss black, floating in the feng shui surface, do not eat.
3, control methods
(1) Using a potassium permanganate bath, soak the sick fish with 20 mg/L of the liquid for 20-30 minutes.
(2) Use a mixture of copper sulphate and ferrous sulphate (5:2) in a splash-proof box with a concentration of 0.7 mg/l.
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