Thank you for this. I am sort of doing the same thing, adding to it when they start to kick up dust and shovel the poopy parts out under the roost every few days and pitch fresh stuff in there. I have been meaning to pick up some DE but I keep forgetting to check if they sell it at tractor supply. I know the health store has it sold by the ounce for food grade, but I am sure I can find it cheaper if I look around. I will have to make sure I go get it before winter. I will have to also check into BOSS, since I have no idea what that even is! Ha!
I want to be practical about chicken care. Since I spend a good deal of time out here with the kids, the care needs to be doable by myself. My grandparents were off the farm long before I was born, and so I pretty much am self taught with the information from this site. (And I did read lots of those other threads before I found this one)
I did do a lot of reading up for about a year before I brought the chicks home but this is really my first real "livestock" experience. So far so good!
OOPS! Sorry - BOSS is Black Oil Sunflower Seed - very good protein source, very good for the birds and they love it once they are a few weeks old.
And you definitely want the food grade DE! But not at the by the ounce price. I get it through my feed store.