I have a bunch of gray tree frogs and a couple green tree frogs. I'm only keeping a couple grays and planning to release the others from where I found their tadpoles. I was wondering what the general rule is for when the best time is for letting them back into the wild. I've heard after they morphed completely but the tree frogs are so darn small. I guess other tree frogs survive just fine that small in the wild. I'm just concerned for my little guys and wanted to see what kind of feedback I could get. Thanks in advance.