Anyone have first hand experience with grain mites? How prevalent are these things? Is it ridiculous to try and get rid of them because they are everywhere anyway? How much of a long term threat/liability/concern are they if they take up residence in my feed cans/coop? I have read that they can cause allergy problems. ETA: these bug are on a bag of crumble. I've identified them as 'Arcus siro'. Video below with a quarter for scale and I was able to get one under a microscope to further confirm ID. Couldn't get a pic from scope as the thing won't stop moving long enough...will keep trying tho, just out of curiosity. Got a bag of feed with grain mites for the second time from the same store...... ......before they exchanged the bags (6? weeks ago) with newer bags that were clear of mites, tho I'm not sure he could see them and they had me bring the bags back into the store. Not sure if they are inside the bag or not as I haven't opened it yet, bought a bag with same date as this one a couple weeks ago that seemed clear, but now remaining 2 bags with same date were at bottom of the pallet. Am ticked off as I don't want to keep taking bags back and don't know how much of a 'threat' it is to just keep this bag.