Poor poor babies! Mites are the vilest creatures on the planet and devilishly difficult to get rid of. I have no personal experience with mites, thank Heaven, but I'm sure my fellow RFers do and can give much better advice. I do know a complete sterilization of quarters and the area is called for, and kitten Revolution is highly effective. Don't be afraid to use the washer with hot water and lots of bleach, but I've also heard soft items such as blankets and hammocks should be removed before treatment and replaced with fresh new ones afterwards. I'm sorry for my inadequate reply but I've never dealt with these wretched parasites personally. I'm sure help is on the way. Wishing you the greatest of success, sending you and the Rats hugs and comfort.