I've got two 3 week old guppy fry in a breeding basket. They're both roughly 1 cm in length. When is it safe to release the captive fry into the wild? I think the mommy guppy is about to blow again, so I placed her in the same breeder with a "V" divider. I'm afraid that should she give birth, the 3 week old fry might try and eat their siblings. Any suggestions?