The fry of Japanese osmanthus has a huge yolk sac. After hatching, the larvae sink to the bottom and the water temperature is 22~25℃. After 4~5 days, the yolk is gradually absorbed and digested, and it can be eaten. Newly hatched Japanese osmanthus seedlings can be used as initial bait. After about 2~3 days, the smaller osmanthus seedlings can be swallowed, and the growth rate is quite fast.