1. Reason: Arowana doesn't like too strong light. If the light on the upper layer of the fish tank is too strong, they will look down to avoid strong light, and their eyes will fall off after a long time.

2. Treatment: It is best for breeders to block or turn off the light on the top of the fish tank, and then install a nightlight. Arowana has a certain phototaxis, and nightlight can attract them to look up, thus solving the problem of eye loss.

1. Reason: Arowana's eye loss may also be caused by long-term foraging under the water. They belong to upper fish, but most of the feed fed in artificial breeding is sinking. If Arowana develops the habit of foraging at the bottom, it will lose its eyes.

2. Treatment: Breeders need to change the floating feed to feed the arowana, or they can choose to tie the food with clips or fishing lines and put it on the water surface, so that the arowana can develop the habit of foraging upwards. After they get into the habit of foraging upwards, they can relieve the eye loss.

1. Reason: Eye loss of arowana may also be due to excess nutrition. Many breeders will feed arowana more high-nutrition food in order to make them grow better. After a long time, if the fat of Arowana is too much, it will accumulate to the eyes and drop the eyes.

2. Treatment: Breeders need to reduce the amount of high-fat food, and let Arowana move more to eliminate the fat in the body and surface as soon as possible. When feeding in the later period, it is necessary to ensure the matching of meat and vegetables.