The traffic light fish is a tropical ornamental fish, suitable for growing in water temperature of 22-26 ℃. If the water temperature is below 20 C, its resistance will decrease and its growth rate will decrease. However, heating rods are not necessary for keeping traffic light fish. If the water temperature can be kept between 22 and 26 degrees Celsius at home, the heating rod can be omitted. On the contrary, if the water temperature can not be guaranteed, it is necessary to use heating rods to help maintain the water temperature, so as to avoid the poor growth of fish caused by the decrease of water temperature.
When breeding traffic light fish, whether they need to be oxygenated mainly depends on the breeding environment. If there are many fish in the same tank and the breeding density is relatively high, it is recommended to use oxygen pump. Because the more fish there are, the more dissolved oxygen they need. The use of oxygen rods can help maintain the concentration of dissolved oxygen in the water and prevent fish from hypoxia. But if there are very few fish in the same tank and the breeding density is very low, then it is also possible not to increase oxygen.
Traffic light fish is a freshwater fish, unable to adapt to the high salinity of the water environment. When farming, it is generally not necessary to add salt. Because adding salt will lead to the increase of osmotic pressure of water, which will adversely affect the growth of fish. However, if the fish is sick, a little salt can be added to the water to kill the bacteria.
