I'm not 100% sure that I have mites, bit have seen small, red round "bugs" crawling in the bedding of the coop, day and night. There aren't a ton of them but enough that I'm concerned. I cleaned the entire coop a couple week ago and put DE in the new bedding but it doesn't seem to be doing any good. Have other people had good luck with DE? I'd love a non-toxic approach, but it has to be effective! Any other suggestions?