So I just completed a reno of my pen, including the addition of leveling sand on top of gravel on top of landscaping fabric. More on the project here: https://www.backyardchickens.com/web/viewblog.php?id=19926-mud-eradication-project . I'm wondering 2 things: (1) Does leveling sand, unlike play sand, work for grit? I've got some stone dust in a container in there just in case it does not, but wanted to check. (2) If it does or does not, is there any danger either way if the hens ingest some of it? B/c they will, esp. when I put out things like corn on the cob, etc. Do I need to worry about this, esp. if leveling sand does NOT work as grit? Thanks!