I've got a neat new idea for a community setup-I've got an old 55 gallon fish tank lying around, and I was thinking about a group of 3 to 5 large treefrogs. I was also thinking about a shallow pool in the bottom of the tank, maybe about 3 inches deep, filled with a couple of small fish and possibly a few African dwarf frogs. The pool will also have plenty of vines and rocks so the treefrogs can get out of the water easily. Would such a setup even work without casualties? If so, what kinds of fish and treefrogs can I use?