No trust me. I have mixed species vivariums and I've done it for years and I spent a few years thinking and finding possible research that the Gray Tree Frogs could live with American Toads and I had them together. Some toads will eat the tree frogs and some won't. The personality mine had they were peaceful with one another. The problem is the toads won't necessarily poison the tree frogs but the tree frogs will poison the toads. Toads have their poison in their two big warts on their backs and choose when to release. The Gray Tree Frog has toxin on it's legs that especially when wet gets into the water. I've heard of people keeping these two together but here's what nobody will tell you that kept them together. The tree frogs and toads are peaceful and can work on a behavioral standpoint but they both need water. I have one toad that goes in one of the water bins every night she basically swims lol anyway the tree frogs were in the same water bin and they sat in it for 3 straight nights for hours. The next day my toad got in the water and that morning she had a seizure which I strongly believe that it was the toxin from the tree frogs that poisoned her. Usually whenever an amphibian is poisoned by another they do not make a comeback it's usually fatal and Death is certain but I got very very lucky as my toad was very strong and was eating very well before this happened. She pulled through and I after a couple of days removed the gray tree frogs. I would not consider putting even the green tree frogs in the same setup with the gray tree frogs because they could potentially poison the green tree frogs. The green tree frogs do not have the same toxin as the gray tree frog. So in other words while mixings debatable I do it and still discourage it for various reasons this is not something you would want to do to another animal. I love my gray tree frogs and I love my other amphibians and I have learned my lesson.

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