I recently acquired a pacman frog, and have been mostly feeding with rubber-tipped tongs. A few times, the frog seems to have been successful in hunting crickets that were left to roam the enclosure. Because of the deep layer of ground coir substrate, I've been hesitant to leave worms for any length of time. They aren't favorite foods (he actually hates black soldier fly larvae, to my great dismay, and mealworms are barely tolerated). Do you think it's still worth trying a worm dispensing device in this case?