I have a 29gal poludarium with two red eye tree frogs and that little microhylid i found. And i thought i had a baby green tree frog in there, but i haven't seen him in a week.. ANYWAY ; i have my water filtered with a submersable filter in the back of the tank. And a 29gal offers some space for a couple adult frogs. Is this enough space, and water to mix species?

I'll upload a picture of my poludarium. i don't know why i haven't yet. haha