Ive looked all around for DE and there was only one store that carried it. I called and asked if this was the food grade DE and he acted as if there is only one kind of DE. I am new to this and wanted to make sure I am using the right thing with my chickens. I want to use it in there bedding and maybe in their feed sometimes(worms and whatnot). I also plan on using this around my yard/garden for bugs and other things. Here is a picture of the front of the bag. Is this the correct DE?