Traffic lights are not too harsh on water quality, so controlling the required survival parameters and observing the state of fish can feed the fish at traffic lights well. This is why novices often say that traffic lights are difficult to maintain, while veterans think that traffic lights are easy to maintain.

The suitable growth temperature of traffic light fish is between 20-26, pH value is between 5.0-7.0 (slightly acidic), and GH value is between 1-2. It is best to raise fish in soft water, but after many generations of breeding, it can also accept the hardness of tap water. When changing water, it is best to change a quarter to a third at a time to avoid large fluctuations in water quality.

Because the larvae are small and swim less, the bait can only be eaten when it reaches the mouth. Open the bait, sieve the egg yolk gray water with a 200-mesh net, and then feed it with a straw drop by drop. After a period of time, when the larvae swim normally, feed the egg yolk gray water with a 150 mesh net instead.

In the breeding, it is necessary to change water less, and the amount of water changed should be less, and the environment should be quiet to avoid direct light. Not demanding on bait, fish worms, water worms and dry feed are willing to eat. The fish at the traffic lights like group activities, and they will breed a group of ten tail. They will swim happily all day.