Because of its unique appearance and wide application in biological research, it has attracted much attention. Many spring fish have transparent embryos, which makes their internal organs and tissues visible in the body. This characteristic makes it an ideal biological model. The characteristics of fast growth, short reproductive cycle and easy maintenance make it widely used in scientific research, especially in ecology, behavior, physiology and genetics. The uniqueness of spring fish lies not only in its availability under laboratory conditions, but also in its important ecological role in nature.