1. Reason: It is possible that the water temperature is too low. Although they are cold water fish, they can survive in lower water temperature. But if the water temperature is too low, it will affect their appetite and activity.

2. Solution: The breeder needs to raise the water temperature to 20-25 ℃, and it is best to install a heating rod to keep the water temperature constant.

1. Reason: It is also possible that carp lie prone to lack of oxygen. Although their demand for oxygen is not high, if the water quality is too poor, it will also lead to a decrease in dissolved oxygen.

2. Solution: When raising artificially, it is necessary to change water regularly to keep the water quality clean. Because the oxygen content in the new water is sufficient, if conditions permit, an oxygen pump can be installed to keep the dissolved oxygen in the water sufficient.

1. Reason: It is also possible that brocade carp lie in the tank because of great environmental changes, such as sudden changes in water temperature and water quality, or the breeder transfers them to a new environment, which will lead to their discomfort.

2. Solution: Breeders need to ensure that the water temperature and quality of their lives are stable, and the surrounding environment is quiet, waiting for them to recover by themselves.

1. Reason: It is also possible that brocade carp lie prone to illness, and common diseases such as colds and enteritis will make them lie prone to urn.

2, Solution: Breeders need symptomatic treatment according to their condition and performance, and after the disease is cured, their lying in the vat will be relieved.