I don't think my hedgie is getting enough nutrition. We use Purina Kitten Chow, and he won't eat anything else. I've tried feeding him fresh fruit and veggies, but he just takes a bite, spits it out, and snacks on his cat food. We've had him for 5 months, and he just ate an earwig today. That is the first food diversity he's had in 5 months. What could we try?