baby fish

Question
Hello i have a question my friends fish just had babies and she was wondering when she can put them back into her normal size tank with the other fish. Or how big they have to be before she puts them back in. Thanks alot Jared

Answer
Jared,
Since I do not know what kind of fish we are talking about it is a bit hard to answer. For example, if the fry are Betta fry, they can never go into the main tank together. But, rule of fin is they can be put back in as soon as they are too big to fit in the mouth of the biggest fish in the tank. Since I do not know what kind of fish are in the tank, I cannot say how long it will be.