Normals have a TON of variation, some have white bellies, some have black bellies, some have stripes, some have spots, etc.
I'm glad hes eaten for you. I'd offer him food every 5 days until he bulks up a little. The triangle look i'm talking about is his spine protruding, its easily fixed as long as he keeps eating.
cinderbird thanks for this im about to start doin my hw on it now...it's way bigger now i started feeding it asf fuzzies ((2 a week)) and last week i couldn't find anynew born mice so i got him to eat a pre-killed asf hopper