I purchased 50lbs. of Food Grade DE at my local feed store for $23.00 plus tax. I am sprinkling it on my coop floor then covering the floor with a bit of straw. When I clean this up in a week and put this soiled straw in my compost heap I was wondering if the DE will kill my beneficial earthworms and redworms in the compost? If so I may need to rethink usinging the DE on the coop floor. I'm only using it here as a precaution.