Silver arowana is abnormal at the bottom of the tank, because they are upper fish and normally move in the middle and upper layers. If they move at the bottom all the time, it may be environmental discomfort or physical discomfort. For example, if there is food or something they are interested in at the bottom of the fish tank, they will always move at the bottom of the tank. There is also less oxygen content, and they will stop moving and then sink to the bottom of the cylinder, which can reduce oxygen consumption. It is also possible that the water quality is too poor or they are frightened. If the water quality is too poor, their activity will decrease. If you are frightened, you may run around or stay still at the bottom.

Silver arowana belongs to the upper layer fish and cannot move underwater for a long time, otherwise it may have problems such as eye loss. In order for Arowana to move to the upper layer, it is necessary to ensure that their living environment is comfortable, the water temperature should be kept at about 28 ℃, the water quality should be kept clean, and the oxygen in the water should be kept sufficient, so as to avoid their discomfort. Secondly, it is necessary to feed them more floating food, which can not only avoid their eyes falling, but also avoid their foraging at the bottom of the tank. Finally, it is necessary to ensure that their living environment is quiet, avoid them being frightened as much as possible, and reduce their activities at the bottom of the cylinder.