Does he look underweight?

[mainer12]

Yes in my opinion i wouldn't back them down to seven days until they are at the 500gm mark at least how big are the adult mice you're feeding him?

The adult mice I'm feeding him weigh anywhere from 18-22gm but I feel like they just look to small, is that a good size for him? And my other bp is about 350gm and eats a small rat a week. Not sure on the weight but could that be too big?

[200xth]

The adult mice I'm feeding him weigh anywhere from 18-22gm but I feel like they just look to small, is that a good size for him? And my other bp is about 350gm and eats a small rat a week. Not sure on the weight but could that be too big?

Those mice are fine for a snake that weighs 190g.

[readymade]

I agree a 18-22g mouse is big enough for a 190g bp every five days would be the right course to take in my opinion