Lion-headed goldfish generally do not need to be heated except in winter, but in winter, whether to be heated or not depends on the growing environment. Lion-headed goldfish can accept a wide range of temperatures, and they can survive normally when the water temperature is between 0-30 ℃. When reared in captivity, there is no need for heating in spring, summer and autumn. Because the temperature can be kept above 10 ℃ in these three seasons, it is ok not to heat them at this time.

In winter, if breeders can move them indoors with heating, breeders can also not heat them. However, if there is no heating or it is placed directly outdoors, the breeder needs to use heating rods to keep the water temperature constant.

lion-headed goldfish need to change water, and their pollution to water quality is not particularly serious. Breeders usually only need to change their water once every 3 days, and the amount of water change each time is controlled at one third of the total water quantity. Although they are not strict with water quality, breeders should pay attention when choosing the water for breeding. Like common tap water, it will contain more chlorine when it is just taken out. Breeders need to expose tap water to the sun for 2-3 days, so as to avoid chlorine affecting their health.