To prepare for brumation, you feed her them a lot. Make sure that they are getting nice, filling, healthy, varied foods. You can feed them a staple diet of mice with earthworms added in. Do this for about a month or two. Then 3 weeks before brumation, stop feeding them. Don't feed them ANYTHING. You want to make sure that ALL food is out of their stomach before they go into brumation. If there is food left, they will be too cold to digest it so it will sit in their stomach and rot. This is not good. It will VERY often kill the snake. If you want to know how to go about brumation PM me.