The traffic light fish are lower fish, which mainly live in the middle and lower layers of the fish tank. Traffic light fish growing in the wild all live at the bottom of the water. Because traffic light fish belong to tropical fish, their origin is full of light, but traffic light fish are also afraid of strong sunlight, so they will only move in the lower layer of the fish tank in order to avoid the light. To cultivate traffic light fish artificially, it is best to plant some aquatic plants, so that they can better avoid the sun.

Traffic light fish belong to small tropical fish, and their adaptability is relatively strong. Breeders can choose some small fish with similar habits to them. Common moonlight fish, Mary fish, guppy fish, zebrafish, lotus lantern fish, triangle mermaid, Congo mermaid, etc. are mixed together. These kinds of fish belong to small tropical fish, so long as the breeder ensures that their living environment is comfortable and stable, they can grow normally.

Although the fish suitable for polyculture with traffic light fish are all small fish, the breeder should try to keep a reasonable breeding density. This can not only ensure their living environment is comfortable, but also keep the water quality clean and fresh, so as to avoid the deterioration of water quality affecting their normal growth.