in cold water? Rat fish can't be raised in cold water. The water temperature they like is between 22-26 degrees Celsius, while the temperature of cold water is between 0-20 degrees Celsius. Rat fish can't accept too low water temperature. Because if the water temperature is too low, they will have reduced activity, loss of appetite and so on, so it is better for breeders not to use cold water to raise ratfish. Moreover, although ratfish are tropical fish, they can't accept too high water temperature. The highest water temperature they can accept is 30 degrees Celsius. Once the water temperature is higher than 30 degrees Celsius, their resistance and immunity will decrease. If the water temperature is higher, they are likely to die directly. It is better to use heating rods to keep the water temperature between 22-26 C in order to make them grow better.
in cold water? Common cold-water fish include koi, goldfish, Chinese fighting fish, Baiyun golden fish, Guanbei medaka, etc. These fish belong to cold-water fish. Koi and goldfish, in particular, can adapt to a wide range of water temperatures, can survive in water between 0 and 32 degrees Celsius, and the requirements for water quality are not very strict, suitable for family breeding. There are also Chinese fighting fish and white cloud golden fish, which look bright and more like tropical fish, but in fact they can survive in the cold winter.
