just water as substrate

[Ra]

I don't understand why people keep placing 2 cannibalistic frog together living in the same tank and actually believe that nothing bad will happen. If I were you I'd listen to Jim and delegate them immediately. No good can come from them being housed together.

Ive read (in a book by the Bartlett's) that two to three similarly sized ADULT Frogs can be kept in a large (30-40 gallon aquarium size) enclosure, so long as they were all similarly sized and werent competeting for space. I kept two specimens in a display tank that were the same size before, in the past. Its not something I would risk today. But keeping a 6" frog with a 3" frog is just stupid, especially since they can eat food items about 50% of their own size. Im sure its just a matter of time before that little guy gets gulped. I also think those front faced exo terra terrariums like the one in the picture, which are taller than they are wide, are less than useful for a Pacman Frog, those terrariums are designed for arboreal creatures. Its really a waste of space and of a kind of nice terrarium that would be better suited to some little tree frogs, and the space that the Pacman frogs do have to occupy is extremely small.