1, whitebait mostly lives in the middle and lower layers of the pond, and rarely moves in the upper layer of the pond except breathing oxygen. If there are aquatic plants at the bottom of the pond, whitebait often gets into the aquatic plants. Young whitebait has a strong phototaxis, and using lights at night can attract groups of young whitebait. You can use this method to check the feeding and growth of young fish, but adult fish do not have this characteristic.

2, silver needle fish is a carnivorous fish, as long as it feeds on smaller fish and shrimp. Young silverfish can start eating ten days after breaking the membrane. Food is generally rotifers, and larger zooplankton gradually feed with the growth of young fish.

3. The gonad of whitebait can lay eggs by itself when it matures. Its gonad development and spawning characteristics are the same as those of whitebait living in natural waters. Generally, the spawning period of whitebait is from the end of 1 February to the end of1month. During the spawning period of whitebait, if there are aquatic plants at the bottom of the pond, the fertilization rate of whitebait can reach 80%-90%.