The specific placement of the lamp in the dragon fish tank should be decided according to the specific situation of the breeder. If the lamp tube used has stronger light, they can be placed on the lacing of the fish tank to keep the light away from the dragon fish. This can not only keep the light uniform, but also avoid scaring the arowana when suddenly turning on the light.

If the light of the lamp tube selected by the breeder is not strong, they can be directly sucked back on the lacing, which can make the arowana better receive the light irradiation.

If breeders want to install multiple lamps, they can choose to place them around or on both sides of the fish tank. In this way, there are lights all around, which can not only increase the body color of Arowana, but also ensure uniform light.

If Arowana can receive sufficient natural light, breeders only need to turn on the lights for 2-3 hours every day. Because the function of natural light will be better than light, and natural light can also sterilize and disinfect, which is very helpful to the growth and development of Arowana.

If arowana can't receive natural light or receives less natural light, the breeder needs to turn on the lights for about 8 hours every day to ensure that they have enough light. Arowana also live in the upper layer when they are in the wild, so they receive more sunlight. It is best for them to receive more natural light when they are cultured artificially.