It is better for Arowana to use dome lamp, because the light of dome lamp is more uniform at first, which can keep the whole fish tank bright. This can not only help Arowana to develop color, but also prevent them from bumping into cylinders and falling scales. Secondly, the overhead lights are installed at the top of the fish tank, and the light illuminated is on the back of the fish, which can make the arowana climb the back better. Finally, the light of the overhead lamp is not too strong, which is more suitable for Arowana.

Side lights are usually installed on one side of the fish tank, and most side lights have strong lighting. If only one side of the light is installed, one side of the arowana may drop its eyes or swim.

Different varieties of Arowana use different lights, so breeders need to choose the appropriate color according to the variety of Arowana.

1. Arowana: Arowana mostly uses white series lights, because white lights can not only effectively promote Arowana to climb its back, but also better induce Arowana's gold quality. But if the breeder uses a black background, he should choose a warm yellow light.

2. Red Arowana: Red Arowana uses complex lights. In their infancy, they only need to use white lights. However, in the sub-mature period, it should be used together with red lights, because this is the key stage of their hair color. When they are adults, they only need a red light.

3. Silver Arowana: Silver Arowana is relatively simple. You can choose white series lamps or warm yellow series lamps.