1. White-headed and white-mouthed disease

Symptoms: necrosis of cells around the forehead and mouth of the Indian Ocean Helicobacter Black, the disease is very fast, the infection is rapid, and all of them will die within a day.

Treatment: Sprinkle one part per million (1ppm) bleach into the aquarium to disinfect.

2. White spot disease

Symptoms: In the early stage, white sacs can be seen on the chest, back, caudal fin and body surface of the Indian Ocean black fish. In severe cases, white spots spread all over the body. The disease duration is 5-10 days. When the disease is found, it has died in 2-3 days.

Treatment: ①The special drug mercurous nitrate is sprinkled all over the place. Use 0.15ppm for water temperature below 15 degrees; use 0.1ppm for water temperature above 15 degrees; sky. When the water temperature is higher than this temperature, the small melon worms will speed up the development for 5 days, then will complete the development and die before reproduction. Therefore, when we found white spot disease, we only need to raise the water temperature to about 28 degrees Celsius, and within two days, the small melon bugs will automatically complete their development and die. White spot disease can be cured if it is maintained for several days in a row;

③Good old water and appropriate amount of water change can better prevent the occurrence of white spot.