what? WHAT????????? you're kidding right?seven? in exo mini? ......... (not using a language i wanna use ....)

anyhow back to business, are you talking about golden bell frog, litoria aurea? if so they are not really a tree frogs, they live on a ground level and can reach 4.5", i think they're the one of the Australia's largest frogs. for that size.... hm .... for 7 frogs? hm.... they eat big prey, can gobble on a mice and if i remember correctly due to aggressive, territorial and at times cannibalistic nature have to be housed alone.

when i think about i can't imagine even 3 frogs of that size living in exo terra mini tank, are you sure they're what you say they are?