Oh wow I had no idea that the changes lasted longer than a week. So, if the prey is small rats, what would you suggest? A bi-weekly feeding or a 10-12 day feeding interval? I know this is a long-term special care situation so I'll pace her feedings at the rate that's safest for her. She's definitely not emaciated or dehydrated, her shed went perfectly, she's just skinny, as you said.