Ok for green tree frogs they need large leaves or perching places so they can rest.I have 2 red eyes and we bought leaves about five cm thick and they cant get enough of it.If you want them 2 breed put an exo-terra waterfall in.Im buying 5 baby green tree frogs in a week or 2 and a frog keeper said that if you look for a medium-large exo-terra tank they would fit into that perfectly.With my babies i bought a medium and will upgrade 2 a bigger 1 when they get a little 2 big for the one they are in.Are you getting 2 adults or 2 baby ones.This could help.
Cheers,
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