I am still trying to figure out this chick grit thing. Is there a reason not to put a pan of dirt into the brooder instead of buying chick grit. Mine are in the brooder during the night and go outside into a tractor for the warmest part of the afternoon to range. They have had a pan of dirt in with them since the end of their first week, they seem to be fine. I know it's not very expensive, it just seemed a bit pointless to me.