I made a sand pit in the brooder from the dirt outside.(sifted) and they all fight for possession of the pie tin it’s in. I see them dig, and eat the granules. Thanks RBI have not offered mine treats yet where they've not been allowed outside to get natural grit. I've offered chick grit, yeah they ignore it so its all been chick starter. Now if they were being broody raised, at 2 weeks old i start offering treats. Even if i didn't offer it, momma would encourage them to eat whatever everyone else was getting.