wont eat, need help

[snakehunter]

i have had two bp's for about 6-7 weeks now, and were2-3 weeks old when purchased, and they wont eat, i tried pinkies, fuzzies, paper bags, and as mean as it sounds, blood letting(the mouse)

when i put the mice in my snake gets excited, and will follow one with his head above it, and loose intrest after a couple of seconds, and my brothers will just do nothing, although he did show a little intrest in the blood letting technique.

HELP!