92-94 on the warm side, 82-84 on the cool side... seperate enclosures... identical tight-fitting hides on the cool and warm sides... once these conditions are met... give them 1 week, then try feeding a wean (35-40g) or small (60g max) rat... If they still don't take it, then there are some other tricks to try... but no handling, and get their environments set up correctly before trying to feed again.... then don't handle them until they feed.

Hope this helps!

EDIT: Oh - and you can feed them in their enclosures... there's absolutely no issue with doing that. Feed boxes/etc... require handling both before and directly after feeding, which can lead to regurges. The small amount of substrate that they may ingest is nothing compaired to the bones/hair that they'll be digesting anyway... and if you're worried about associating going into their enclosures with food, then you can adjust their association by entering their enclosures for many different purposes. (cleaning/watering/handling/etc..)