1. Reason: White spot disease is one of the most common diseases of map fish, and the main cause of white spot disease is too low temperature or too large temperature difference. This disease usually occurs in autumn and winter. In the early stage, sporadic white spots will appear on the surface of the sick map fish, and they will constantly rub their bodies against the cylinder wall or other decorations.

2. Solution: If you want to treat white spot disease, you must first raise the water temperature. Breeders can first raise the water temperature to above 26 ℃, which can reduce the spread of white spot disease, and then use white spot net for medicated bath. Take a medicated bath once a day, and you can recover after sticking to it for one week.

1. Reason: Map fish suffer from unfinished tail and fin rot mainly because of poor water quality. Although this disease is not serious, it is common in map fish.

2. Solution: Breeders need to change water immediately to ensure clean water quality. Then take a medicated bath with potassium permanganate solution once a day for 15 minutes each time. If conditions permit, it is recommended to install filters to ensure clean water quality.

1. Reasons: Scale descalation is a common disease of map fish, and there are many reasons for this disease. For example, fighting, being frightened or improper feeding will cause them to fall off scales.

2. Solution: Breeders need to judge the cause according to their symptoms, find out the cause, and then treat it. When treating, ensure that the water quality is clean. If the situation is serious, furacilin powder or oxytetracycline can be used for medicated bath.