I feed my Copes Grey Tree Frogs the Turkish Roaches also know as Red Runners. They can be ordered on-line. They are clean, don't eat their young, won't bite the frogs and cannot climb. They are long-lived and replenish themselves by breeding. My frogs would not eat the lazy Dubia Roaches and Crickets smell and die easily. I occasionally throw in a right-sized moth for the size of the frog and watch the excitement of the hunt as the fluttering wings seem to trigger the frogs hunting. It didn't take long to realize the moths are fattening and I had to cut back to one moth per week per frog, the frogs were becoming obese.