The belly of a female anchovy is enlarged and the area around the cloaca is blackened, which is a sign that the fish has given birth.

The anchovy, commonly known as "crabs" and scientifically known as "crabs", is a valuable economic fish. The anchovy is a migratory small fish that usually inhabits the outer sea, but in late spring and early summer every year, it enters the river in groups from the sea, and makes a return trip to spawn at the entrance of freshwater in the middle and lower reaches of the river.

Anchovies lay their eggs in 20 minutes or 2 days. If there is no shock, 2 hours is usually enough. Anchovy pupation time varies depending on the environment, and the fish.

Generally the female fish will not eat the baby fish just after laying. But it may eat by mistake, so you need to fish out the baby fish and put it into the tank of baby fish. Mother fish just after laying small fish have poor appetite, don't put it back immediately, at least stay for 2 days and then put it back.