Goldfish. The origin of Thai lion is a new breed of lionhead goldfish cultivated by Thai fish farmers after it entered Thailand. The formation of Thai lion is not simply cultivated and screened, nor is it a breeding offspring of a single lionhead. Tail-tailed Thai lion is a popular mainstream goldfish species, which grows fast, its tail is towering like a girl's skirt, its swimming style is vigorous and lively. Thai lion belongs to the side viewing type, which is suitable for glass jars, and the formation of Thai lion is very different according to the different breeding methods of different Thai fish farms.