4 months ago we rescued one tiny platy and he's still growing happily in our molly ruled tank. the second baby 2 months later did not survive. today we found number 3; another tiny platy. the mother has not been seen for at least 3 weeks. we have a seashell in the tank that was her home but this got overswum with mollies after a recent breeding explosion by the now deceased parents. in short, how does this happen? how long are platys pregnant (papa died months and months ago)? how many fry can they have? and more importantly, how can we have another baby when the mother is nowhere? if anyone knows, we'd be grateful if you would share your knowledge.