[M_Canadian]

I would change his food to a high quality cat food right away. If you check the nutrition area your will see quality foods that are good for hedgies. That stuff is basically junk food. With the wheel he could have worn his nails down too far or caught them and torn them on the wheel. You also might want to think about switching him to liners in his cage as well.

 

[M_Canadian]

I wouldnt want to take a chance at letting my hedgie get sick. So I would suggest to use liners they are less expensive in the long run as you can just wash them, but that is only my suggestion.

Did you look at the different food available? You really should switch him over to a high quality cat food. Mealies should also only be treats and not mixed in with his food.