Arowana can use dome lamp with diving lamp, and it is best not to choose side lamp or other spotlights. Because the dome lamp can keep the light uniform, and the dome lamp is far away from the arowana, as long as you choose some dome lamps with soft light, you are not afraid of being frightened by the arowana when you turn on the lamp directly. Diving lamp can be used together with dome lamp, which can not only make Arowana hair color better, but also enhance Arowana's ornamental value. However, improper placement of diving lights may cause them to drop their eyes or swim sideways.

Under normal circumstances, it is not recommended for breeders to use side lights or other spotlights, because the side lights or other spotlights are too strong and easy to cause arowana to drop its eyes.

The time for Arowana to turn on the light needs to be decided according to the feeding situation. If Arowana receives more natural light, the time for breeders to turn on the light can be shorter. Turn on the lights for 2-3 hours every day.

If the arowana is unable to receive more natural light or cannot receive natural light, the breeder needs to turn on the lights for 8-10 hours every day. Because arowana needs more light to make its body color more bright, it is best for them to receive more natural light when cultured artificially, and then choose to supplement it with light when the natural light is insufficient.