Poland lantern fish is a tropical fish, the suitable water temperature is between 23~28℃. A constant water temperature is required during the feeding of the lantern fish, and the water temperature is too high or too low, which is not conducive to the growth of the lantern fish. If the temperature is too low, it will easily affect the feeding and activities of the lanternfish, and if it is too high, it will accelerate the metabolism of the lanternfish, and even lead to its death.

The lantern fish is sensitive to the difference in water temperature. It is also necessary to strictly control the water temperature difference when changing the water, otherwise the lantern fish may not be able to adapt to the new water. In addition, during the period when the lantern fish is sick, the water temperature often needs to be properly raised, which can stimulate the body of the lantern fish, accelerate metabolism, stimulate its own immunity, and thus play a role in disease resistance.