Hey everyone. Just a newbie here to resurrect a thread burried in time.

I picked up a terrarium off someone including 2 White's tree frogs and 2 Centralian/Gillens Tree Frogs. I've been minorly concerned that the Centralians are currently a bit smaller than the White's. People are saying never to house different species together but I'm wondering if these are safe. They are very closely related and even look almost the same. The only main difference is slight colour variation and place of origin. The Gillens sleep directly under the male Green Tree Frog and I have no reason to believe they're menu items. At night the Gillens hang out together on top of the temperature/hygrometer. Sometimes they go together into the male Green Tree Frog's corner to sleep and sometimes one hides under the water bowl feature. The same one always sleeps directly under the male Green Tree Frog and it's the other one who usually goes into hides. Mind you, the female Green Tree Frog is massive. Neither of them sleeps in her corner and maybe this is why. However, I reckon the heat light being in the male's corner to be the reason why (girl's not been in her corner past two nights yet they haven't done a take-over). I believe the Centralians to be just over half the size of the male. They were transported together in a small bucket without any issues.

I hadn't been too worried about this because my attention's been focused on cleaning/improvement of the enclosure and the female GTFs possible stress. After reading about the poisons unique to each species though, should I be? Or does their close biological relationship mean they're safe together? Or do I need to put a seperate terrarium in the terrarium for the Centralians (I couldn't possibly afford a whole new set up)? To the best of my knowledge they've lived together 3 years. The Centrallians might be a bit younger though and maybe they should grow before being aound the GTFs.

I'm hoping to get two very young Green Tree Frogs and keep them in a little container inside the terrarium or convert an old fish tank until they're big enough. Having two housing units in the terrarium isn't going to work. When I got the terrarium I hadn't stopped to think that green tree frogs would cannabilise young and I'd need another one as well. Likewise I hadn't thought about frog's poisons slowly killing one another.

Centralian Centralian Tree Frog: The Animal Files
Centralian tree frog - Wikipedia, the free encyclopedia

PS I noticed the forum had inserted "American" in front of Green Tree Frogs. Just to clarify if there are some instances reamining: I have White's tree frogs. I may have also mistyped Centralian. I'm rather tired, sorry. If I'm incoherent it's ye olde sleep deprivation.

Thanks for any recommendations!