of Black Mary? The simplest way to know whether the Black Mary fish has completed the birth is to look at the size of their belly. If their belly is still big, it means they haven't finished giving birth, and if their belly has changed back to its original size, it means they have finished giving birth. Black Mary fish need to be quarantined as soon as possible after birth, otherwise they will eat the newly born young fish. It can also be judged by observing the number of eggs they lay. Normally, an adult black Mary fish will lay 10-20 small fish at a time. If the number of eggs is reached, they will not produce any more, it may be the end of production.
? If the black Mary fish does not continue to give birth after giving birth to some, it may be dystocia. There are many reasons for dystocia, such as being frightened or stimulated. At this time, the breeder needs to massage the belly of the black Mary fish with gentle water flow to promote their production. We can also replace them with a new production environment and use the changes in the environment to stimulate their production. If the birth is difficult for a long time, the breeder will need artificial delivery, which can gently squeeze the belly of the black Mary fish, squeeze out a few small fish, and then put them back into the tank to give birth by themselves.
