Pick up a can of Prevent a Mite: http://www.pro-products.com/index.ph...d=53&Itemid=59 Follow the instructions on the can: which include not spraying the snakes but spraying the enclosures and substrate and letting that air dry before returning the snakes to the enclosure. I'd put them on paper towels for now so you can see the mites better.
Is Prevent a Mite common at pet stores or should I order it?