Some unfertilized eggs will be sticky, which will make the water surface of the fish tank turbid and reduce the oxygen content, causing the big fish in the original fish tank to suffocate and other conditions, which will affect the growth. At this time, the water should be changed as soon as possible.

Soymilk is rich in protein, which can meet the nutritional needs of fish fry, However, the nutritional value of soybean milk is low, difficult to digest, and the absorption rate is low. It is easy to form suspended matter in water, which affects dissolved oxygen and is easy to ferment. Therefore, most soybean milk mainly plays the role of fertilizer and water, which promotes the rapid reproduction and growth of plankton in the water body. Blue line hanging fry provide bait.