I just got my first ball python a little bit ago and she's about 4 feet long and approximately 3 years old. The guy I got her from said she's only ever eaten mice. I just fed her today and the mouse just didn't seem like enough for her. The guy did say I could feed her more then one but it seems it would be easier to just feed her a small rat. Apparently he fed her only once every 3 weeks as well. So would it be better to continue feeding her mice, and feed her multiple ones, or would it be ok to start feeding her rats?