Ya, I had fire newts and fire belly toads.
They are quite active, and don't get as big as a dumpy.
I wouldn't put a dumpy in anything smaller then a 20 gallon high.
They can get pretty big and fat.
I have a spotted tiger legged frog
(Kassina senegalensis) and tomato frog (Dyscophus antongili) in there with them, they never come out.