i would recoment a broad laefed plant.any tropical plant or leafy vine at home depot would do.they r only like 2 bucks,and get some heat in there,you dont need alot but it would help with the humidity.frogs like humidity.
If it was from upper elevations in Colorado it is the western chorus frog as stated. in addition to very small crickets it will take termites, small moths, silverfish, etc. they get to 1 1/2" long from nose to vent. Don't heat the tank.