1. Reason: Under normal feeding, arowana will have drooping eyes when it is older. This kind of normal physiological phenomenon belongs to them, and we human wrinkles are the same reason.
2. Solution: The drooping eyes of arowana after old age are normal physiological phenomena, and breeders cannot deliberately treat them.
2. Adjust the light1. Reason: The drooping eyes of arowana may also be due to the strong light in the upper layer, which has both light avoidance and phototaxis. But they are sensitive to light changes. If the light in the upper layer is too strong, it will cause them to look down all the time.
2. Solution: The breeder needs to adjust the light on the upper layer. If it is a light, it is recommended to replace some aquarium lights with softer light. If it is natural light, it can be properly shielded when the light is violent.
3. Feeding floating feed1. Reason: Arowana's drooping eyes may also be caused by long-term foraging at the bottom. Arowana prefers animal feed, which will sink to the bottom if fed directly. Arowana is used to drooping eyes after foraging in the lower layer.
2. Solution: Breeders need to feed more emerging feed. If the feed is sinking, they can clamp it on the water with clips. This can train Arowana's habit of foraging upwards, and also relieve the drooping eyes.