I have not had ANY luck with a 10 gallon rain chamber. Only 35+ for tree frogs. The females may have been stressed with a 2 males to 1 female ratio in such a small enclosure. (not sure to be exact)
I added a 3rd species of plant in my first post as an edit that work REALLY well for them.
I would also lay off the backround for a tree frog unless its an easily removable backround. They tend to shed their skin on the glass and you need to clean the skin off early (within 1 day) to prevent it to turning to a hardened glue form. Only way to get it off efficently after hardening is with a razer blade. Its horrible. Even worse if they drop skin on your beatiful planted backround that took days to make. Whites Poo tends to be one of the stinkiest as well. So letting that sit on your backround and smelling up wihtout you noticing is pretty bad. Learned the hard way with that species.