Originally Posted by Jay jay
I have baby in a breeder and I just want to know how long to keep them in there. I think I heard 3 weeks.
Hey, do you mean, so you can release it back into the main tank. The rule is, as long as it's bigger than your biggest fishes mouth, than you can release him/her in the tank. If it's only guppies you have, I would say about double that. It depend how quickly, big it grows....