(1) Shui Mu's symptoms: the fish is dark in color, with white fog on the surface, fin contraction, loss of appetite and decreased activity. Treatment:

(1) soak in 2 g/m3 methylene blue solution for 24 hours, completely change the water, once every other day, for three times in a row.

② Soak in 150ml/m3 formalin solution for one hour, and then completely change the water. You can use it again in two days.

(2) Symptoms of rotten gills: colorful heads are upturned, and the inner and outer edges of gills are white and rotten. Fish have shortness of breath, wide mouth and cheeks, and poor appetite. Treatment:

(1) Soak in 2g/m3 methylene blue solution for 24 hours, and completely change the water.

Once every other day, three times in a row.

(2) Oral administration: according to the method of feeding 50 mg per kilogram of fish every day, erythromycin was mixed in the bait for three weeks.

(3) Symptoms of enteritis: Fish feces become thinner and whiter, dragging on the anus. Fish eat less and become thinner. Treatment method: In order to prevent the bait from deteriorating for too long, use fresh bait. Oral ciprofloxacin bait, 50 mg per kilogram of fish per day, 10 day.

(4) Parasitic parts and results of flagellates: Flagellates are parasitic in the intestines of the colorful angelfish. In the case of poor water quality, malnutrition or long-distance transportation, when the resistance of the colorful angelfish decreases, flagellates will multiply in the intestine, causing enteritis, and in severe cases, it will lead to the death of the colorful angelfish. The colorful angelfish infected with flagellates are dark in color, dull in eyes and white and sticky in feces. Treatment:

① Use special medicine for colorful angelfish, "Everything must be removed". Every 1 0kg of water was soaked in1g of "Baibike" for 6 days continuously.

② Use "Baibichu" bait, add 25g to each kilogram of bait, and feed continuously for 7- 10 days.