DH and I re-did our chicken coop today with sand and DE. The coop is about 8 x 12. Per some suggestions on this site, we used Sweet PDZ, DE and sand. I didn't know how much to put, so we did 1/2 bag Sweet PDZ, 1 ton of sand and 25 lbs of DE. It was a food grade DE, but I noticed when I got home it had a really small % of bentonite (clay). The thing is, the coop was super ultra crazy dusty afterwords. We tried to rake the DE into the sand to help and DH even misted it with the hose to help it settle. (Yes I know that this counteracts the supposed benefits but he didn't wet it too much and it did help to settle the dust.) It still smells strong in there, but the dust is a lot better. The chickens and ducks went in, but I left the door open just for this night to help with ventilation. We just finished 45 minutes ago and I had to make dinner still, so no roosting poles are up yet and they are on the floor. Do I need to go move them out of the pen, or should they be ok????? Should've got those roosting poles up!!!!!!!