What should I be feeding?

I've asked this before, but this time I come armed with photos. I give him a rat crawler once every 5 days now. I know there are some slight differences in what people call rat crawlers, but the ones I get are about the size of a smallish adult mouse with their eyes open. He seems to be doing really well to me. The guy at the pet store said that I could bring him in and he would tell me, but I don't really trust that guy...

http://upload.eddandjack.com/files/4...onStretch1.jpg

http://upload.eddandjack.com/files/2...onStretch2.jpg

Rat crawled sounds good. It's easiest to feed something that is about as big around as they r. When they r young I used the 10-15 percent of there body weight

I usually feed food items that are about 13% of the snake's weight weekly. As they approach their adult size, I feed every 2-3 weeks.

Rat crawlers are perfect for now. I feed rat pups (pretty sure they're the same thing) until they reach about 350-400g then I switch them over to weaned rats until 750-800g when I start giving them smalls. :)

I just think he looks a little thin. I mean, compared to other peoples pics on here. Does he look about normal to you? He acts healthy- does everything I've seen posts on nice healthy BPs doing... soooo....