I recently built a terrarium for my green and gray tree frogs. There is a red spotted newt in there too. Everyone gets a long fine. It is a in a large tank (30gal high) with a waterfall I built into 6 inches of water for half the tank. The other half is land with a few live plants. Anyways, the tree frogs always stay on the top of the cage and never touch the water. I was considering getting a firebelly toad for that but wasnt sure if the toxins can harm everything else. Either That or a newt. I know everything should be housed separately but it is not a big incestment and I am not worried about one eating another because they get along fine with the salamander and I hand feed everyone. Any thoughts? Toxins are my main concern.

Thanks,

Mat