BP getting slightly aggressive

[Walkingdragon]

4 hopper mice? How often and what is his weight?
At a year he should be on small rats or several large mice.

Not sure on his weight (don't have a scale), he's his almost 3 feet and about as round as a 50 cent piece so he's still just barely too small for rats (that and I've still got surplus mice to get rid of lol). 4 Hopper mice is about the same size of a full grown mouse and as I said I usually watch for the bulge to know if he's filled up.

I feed him once every 7 days (each Friday around when I start cooking dinner)