My BP Archimedes is a new addition to my family. I first got him the Sunday before last, and fed him the same day. I don't have a scale, nor do I know the size descriptions of mice, but the mouse I fed him was a little smaller than his largest point. I just went into Petco and asked for feeder mice. I fed him again last Thursday, then went out of town. I did not feed him last Sunday. I've yet to see or smell a single poop, which makes me concerned. I'm not really sure how often he's supposed to be pooping. Could it be the mice I've given him?

Thanks for any help.