I've searched here and google, and seem to be getting conflicting info. I have 10 ducks and we use deep litter. Today, as I was collecting eggs, I saw a few tiny bugs crawling on them that I fear are red mites. I hope I caught it early. I don't want to use sevin or other chemicals, but also want to deal with it properly. Any experience with neem or de? Can I use one or both on their shavings as well as them? Other ideas??