I have been having a great time over the last few weeks watching my white and black molly and guppies having their babies. the thing is that we are getting rather alot now and I was wondering at what size would the pet shops mabey take them? I have bought myself a new 25 gallon tank so I was going to use my other smaller one and the one I have now to keep the babies in. I am keeping the bigger one for the bigger fish