1. Reason: The map fish swimming obliquely may be caused by the temperature difference, although they are thicker and have strong cold resistance. But if the temperature difference is too large, it will stimulate them and make them have a strong stress response.

2. Solution: Breeders need to raise the water temperature to 26 ℃, and after they adapt to the new environment, they will return to normal swimming state. When breeding artificially, it is necessary to ensure that the temperature difference is within 2 ℃, so as to avoid this situation again.

1. Reason: It is also possible that map fish swim obliquely because of illness. Common fish imbalance, cold, enteritis and other diseases will cause them to swim obliquely.

2, Solution: Breeders need to judge the cause according to their performance, and treat the symptoms according to the cause. After the disease is cured, the situation of map fish swimming obliquely will improve.

1. Reason: Map fish may be resting while swimming obliquely. They are greedy fish. And after eating, they will lie on their backs and rest in the corner. Although they are resting, they also move slowly, so they look like they are swimming sideways.

2, Solution: This is a normal phenomenon, and breeders don't need to disturb them. And try to keep the surrounding environment quiet, so as to avoid them being frightened when resting.