Yeah, my girl pretty much did the same. She wouldn't really eat all winter long,maybe one 30g mouse every 3-4 weeks and she's about 500g.

A few weeks ago she started eating again and is now eating both rats and mice for a total of about 80g of mice every 4 days. I only feed her when she's in "hunting mode" where she curls the first few inches of her body in an S just outside of her hide. I figure if she's looking for food, she's hungry, so I offer and she strikes instantly.

I think I'm going to up her food size again once I finish up the current supply.