I found one small small red mite crawling on an egg this afternoon but I don't know if its the dreaded red mite. It is bright red and six legged. I haven't noticed any infestation piles and my chickens look healthy. Will check butts tonight to see if they are infested but I don't think so. Do you think I should put seven dust in the nest boxes? Will plain ole seven dust work? I have some left over from the gardening this year.