oh and after the mum has her babies keep her in there for afew days to a week so she doesnt get annoyed by the male as she will be exhausted and needs time to chilax
um im not too sure bout them but, say for instance guppies will have babies every month so after i see the little fry for 1st time after she gets out the breeding trap i know i will have to put her in about 3 weeks later as they are mega horny fishes lol, so if u find out how often they get preg and how long it takes just count the weeks from when she gives birth then u cnt go wrong!!
ok i just looked it up, There gestation period is about 30-40 days. they will mate right after the female gives birth. so i would put her in 30 days after u take her out the breeding trap