Hi! I'm very new to chickens, I got my chicks just a week ago and they are between 3.5 - 5.5 weeks old. Today I caught a cricket in the yard and put it in the coop with my 11 chicks and they had a great time chasing each other around and dismembering it But now I'm a little worried because I didn't even think about the fact that I haven't given them any grit yet. They free ranged once, some a few days ago and most likely would have picked up some sand and dirt then. Am I being paranoid? I plan to get some grit on Monday just to put my mind at ease. Thanks!