As some of you know I'm new and still learning. My BP just had his first shed, and I belive it went well (although I did have to help him get the shed off of his tail). Today I noticed that he has black spots along his sides (more prominent in some areas). Now I haven't even had him for a week yet, but I'm nervous that they might be mites b/c I'm using aspen for bedding and one pet store employee implied that aspen sometimes contains mites. I really don't think it is, but then again I don't know much about them.

If anyone has any pics of BPs with mites, mites, or has any other signs that a BP may have them please share.
I would appreciate any comments/suggestions.