Keeping a green tree frog

[Lazzo]

My family found a tiny Green Tree Frog, and I'm thinking of keeping it. But i need to know if it could live with any of my other frogs, i don't want to make another habitat just for it.

I have a Great plains toadlet, about half the size of this frog, with a small habitat with paper towel substrate.
My other frog is a Fire bellied toad at least three or four times the size of this frog, Her (we believe it's a 'her') habitat is a fairly large terrarium that's half rock and half water.

Would it live happily in any of these habitats or would it be happier for me to just let it go?

EDIT: I'm so sorry,the frog isn't a green tree frog, as I've just discovered, it's actually a Bird-voiced tree frog. Which i suppose has different needs.

[flybyferns]

Hi,
I'm glad you "need to know" .........that's very smart !
It's great you ask these questions
And, I bet you know the answer !

It can't live with your others, sorry.
In my opinion, it's best to put it back where you found it asap.
The longer you have the little guy the more stressed it will get

If you want another frog....and you have the space in the tank ... get yourself the same species frog that has been captive bred

[Lazzo]

Alright, thank you for a prompt response!