I agree, mice fuzzies are too small. I would go to Rat fuzzies every 5-6 days. As he grows weigh him and try to keep the food item between 10-15% of his weight. Once he hits a few hundred grams and go to once a week. That was how i fed, my boy is 18 months and about 900 grams, and eats a small rat every 7-10 days. Believe me he lets me know when he's hungry.