The lowest temperature that map fish can bear is 14 ℃. Although they are tropical fish, they have cold resistance. As long as the fluctuation of water temperature is not too large, they can survive normally.

Although the acceptable water temperature for map fish is 14 ℃, they cannot grow at the low temperature of 14 ℃ for a long time, because too low water temperature will cause them more discomfort. And when the water temperature is lower than 22 ℃, their appetite and activity will decrease. If the water temperature is lower than 20 ℃, their physique and health will deteriorate, and they are prone to illness. When the water temperature is lower than 14 ℃, they will freeze to death directly. Even if there are some strong physique, they can't last too long.

The most suitable temperature for map fish is between 22-26 ℃. They are tropical fish and need to live in a warm environment to be more comfortable. When farming artificially, the water temperature needs to be in a stable range. Although map fish are relatively solid, they are also sensitive to environmental fluctuations. After entering autumn and winter, breeders need to install heating rods to keep the water temperature constant. After entering winter, breeders need to add a cover or a film to the fish tank to ensure that the water temperature in the fish tank is constant.