I keep seeing mention of Diatomaceous Earth and I also know that the place that makes my organic feed carries it. However, I don't know anything about it. Is it considered an organic supplement? I know it's supposed to treat and prevent some parasites, but that's about all I know so far. Does anyone use it? Do you like it? How is it used? Also, my chicks are nearly 4 weeks old. Can I use it on them? would I want to? I have seen mention of it on threads about parasitic worms and I know that chickens get those from free-ranging and eating bugs and grass. My chicks already eat earthworms and I plan to let them free-range as soon as it warms up a bit. I want them to be organic and free-range as much as possible. I am looking for suggestions.