1. Reason: Goldfish may not move at the bottom of the fish tank because the water temperature is too low. Although goldfish do not require high water temperature, when the water temperature is low, their appetite and activity will be affected.

2. Solution: The breeder needs to slowly raise the water temperature to above 18 ℃, and it is best to install a heating rod. In this way, not only can the water temperature be kept in a comfortable range, but also the water temperature can be kept constant to avoid temperature difference.

1. Reason: Goldfish may also be caused by poor water quality at the bottom of the fish tank. When the water quality in the fish tank is too poor, they will hide at the bottom of the tank.

2, Solution: Breeders need to change their water immediately to keep the water clean. If conditions permit, a filter can be installed to reduce the speed of water quality deterioration.

1. Reason: Goldfish may be sick when they don't move at the bottom of the fish tank. When they get sick, their physical strength and energy will be affected, and they will always stay still at the bottom of the fish tank.

2. Solution: Breeders need symptomatic treatment according to their illness, and after the goldfish's disease is cured, it will return to normal state.

1. Reason: Goldfish can't move at the bottom of the fish tank because they don't adapt to the new environment, and they are sensitive to the fluctuation of the environment. After arriving in the new environment, there may be fear and fear.

2, Solution: Breeders need to keep their living environment comfortable, which can speed up their adaptation.