Why do tropical fish traffic lights turn purple?

The traffic lights of tropical fish may turn purple, which is usually caused by water quality changes or fish diseases.

First of all, fish at traffic lights are very sensitive to water quality. If the water quality is not good or changes too much, it may cause them to change color. If the water quality is weakly alkaline or the chlorine content in the water is too high, the fish at the traffic lights may turn purple or lose their original color. In order to prevent this from happening, breeders should maintain good water quality, which can be maintained by using filters or changing water regularly.

In addition, fish at traffic lights may change color because of illness. Such as water mold, gill diseases and so on. May cause fish to change color. If the fish is discolored and accompanied by other symptoms such as loss of appetite and decreased activity, the breeder should send the fish to the doctor for treatment in time.

Finally, the fish at the traffic lights may change color when they are frightened or the environment changes greatly. Therefore, breeders should try their best to keep the environment stable and avoid unnecessary interference and shock to ensure the color stability of fish at traffic lights.