I've been feeding my frog crickets. (He doesn't want anything to do with nightcrawlers or tongs, yet. I'll keep trying). When he goes for a cricket he comes up short and eats some cocofiber. He does this like 6 times. Is eating cocofiber ok? Or should I put him in a container with paper towels a feed him in there instead? I'm worried that would stress him out and he won't want to eat.