Yeah, providing there is no treefrog in it, they are quite toxic. I have a trio that I keep on sphagnum and feed small insects like fruit flies, pin head crickets - 1/4" crickets, bean weevils, & small (home grown) wax worms.
Here is an article on the species Red-Banded Rubber Frog, Phrynomantis bifasciatus.
Also could you do me a favor and post your country and location in your profile. It will help us to help you better.