We've got some new chicks, 6 of them, and they have mites. I'd like to treat them for this, as I can imagine, having gross little bugs crawling all over you is not fun. Can I treat them with diatomaceous earth for this, or would I need mite spray? They're white leghorns, still yellow and fluffy. I am uncertain of the actual age of the chicks, but I imagine they're not too old. Any suggestions would be great!