Welcome to the site, There are a lot of good people here that are very helpful.
I am so glad to hear that you are doing the right thing in doing research and planning before just
going out and buying a frog with out thinking about it.

My self I have kept fish and African clawed frogs for many years but never tree frogs.
So I have a set up that the bottom is a aquarium and the top part is for a pair of whites dumpy tree frogs.
I still don't have in the eco-terra 18-12-36 enclosure just yet.
I just got the aquarium part started with live pants , snails , 4 small Dalmatian mollies to get the water cycled.

Again welcome to the site.