I've fed my ball python 3 times now and I'm thawing out his/her next meal - a small mouse. I open the little bag I thawed him in and it smelled "off". I immediately threw him out and am thawing another. I haven't ever smelled an odor from the mice prior to this one, so I was curious if any of you know if that means it is rotten or not.

These are pet store small mice - the Arctic Mice brand. I saw a different thread from a not so satisfied customer. Anyone bought this brand?

*I just went to go check on the new thawing mouse and the head is bloody. What the heck?*