I have some chick grit in with my 5, 2 1/2 week old chicks and want to start introducing treats but I don't think they're using the grit :/ I've had the chick grit in with them for a week or so to get them ready for treats but it doesn't seem like they are using it. A little bit has been kicked onto the floor but its not disappearing so I was a little hesitant to start giving treats if they aren't getting the grit they need.