It is best to control the water temperature of the traffic light fish at 22-24 degrees, and strictly control the changes in water quality. We recommend weakly acidic water with a PH value between 5.0 and 7.0. Traffic light fish can accept hard water, but the best feeding conditions are soft water and old water.

Therefore, it is best to change the water regularly, but it is not necessary to change the water too frequently. The water used needs to be exposed to the sun in advance to avoid chlorine poisoning in traffic light fish. The traffic light fish is relatively timid, and try to move lightly when changing the water, so as not to cause the traffic light fish to be stressed.

The lowest temperature that the traffic light fish can tolerate is 20 degrees. Once the temperature is lower than 20 degrees, the traffic light fish may stop eating and die. Therefore, when the indoor temperature is lower than 22 degrees, it is necessary to detect the water temperature in time and warm the fish tank in time to prevent it.