Archivarium 2004

[Buffy16938]

I have 5 baby mollies, they are 3 weeks old now. I was wondering how old they have to be to reproduce. I have them in a tank with 6 neon tetras and they boss the tetras around, quite funny. I just have a 10 gallon so I would like to put off having an overwhelming tank of mollies, though I love them. How old do they have to be when you can begin to tell if they are male or female? Also, didn't want to put another post up for this. I left for the weekend and came back to find a small snail on my tank, what mainly do they do? And if there is one, do you think there will be more? Thank you!