My button quails' feed (and presumably their home) is infested with grain mites, which is particularly annoying because they live inside my house. I've ordered fresh feed and bedding, and will be thoroughly cleaning their enclosure, but I can't be sure all the mites will be gone. I was thinking of adding some DE to their new feed and/or their sand bath, would any of this be dangerous to them? If not, how much is sensible to mix in? I know chickens are usually okay with DE but buttons are so tiny, I obviously don't want them getting harmed in any way.