1 female fish, the juvenile period of the female fish is from September to October. The fish will start courting and spawning. Females that don't find a suitable mate usually don't lay eggs. Females will lay eggs 22 to 25 times in their lifetime. And every 7 to 8 times, there will be a long rest period to restore physical strength. However, if the released eggs have not hatched juveniles, the female fish will continue to ovulate, and the number of ovulations may be much higher than the normal 22 to 25 times. The number of spawned eggs depends on the body condition of the female fish. Young female fish ovulate more at the beginning, but after the peak period, the production will decrease. The amount of production also depends on the water quality and whether the mother fish considers an appropriate production environment.

2 male fish, the juvenile stage of male fish is later than that of female fish, usually from the thirteenth to fourteenth months after birth. Before juvenile males have already made girlfriends, breeders call them -- pairings, but for sperm production. The juvenile males can ejaculate onto the eggs of the females, allowing them to mature and hatch into small fish. Males have a shorter ejaculation period than females, and generally begin to decline around 24 months and cannot produce. However, the male fish in the ovulation period is stronger than the female fish, because the female fish will ovulate after a period of time after the eggs are released. If the male fish is flowery, one male fish can reproduce with two female fish. The problem is that the upper body of the hairtail must be well arranged. The sperm and physical condition of male fish directly affect the quality and quantity of reproduction, so it is more important to select a strong male fish. The female fish releases the third white eggs, and the strong male fish coughs 80% to 90% of the eggs to hatch successfully. If the male is weak, or affected by the environment, the victory rate will become zero.