1. Reason: The common disease of map fish is white spot disease. They are tropical fish and like to grow in warm environment. If the living water temperature is too low, it will lead to a decline in their resistance. Moreover, if the water temperature is too low, the small melon worms will quickly multiply and invade the body of map fish, making them sick.

2. Treatment: Breeders need to raise the water temperature to 30 ℃ immediately, but the speed of raising should not be too large to avoid discomfort caused by too large temperature difference. Then use Baidianjing for medicated bath once a day for 20 minutes each time.

1. Reasons: Fin rot is a common disease of map fish, which is mainly caused by poor water quality or lack of timely treatment after trauma. Map fish will turn slightly white in the early stage of fin rot, and when it is serious in the later stage, it will rot or the whole fin will fall off.

2. Treatment: The breeder needs to isolate the sick fish first, and then change the water in time to avoid bacteria breeding in the water. Finally, use furacilin powder or furazolidone medicated bath. Take a medicated bath once a day for 10-20 minutes each time.

1. Reason: Bubble disease is a common disease of map fish. The main reason is that the content of ammonia or oxygen in water is too high, which leads to dense small bubbles in their bodies.

2. Treatment: The breeder needs to change the water immediately, which can reduce the ammonia content in the water. Also stop playing oxygen or a small amount of oxygen to avoid excessive oxygen content in water.