Has anyone tried Avia Charge 2000? Supposed to be an all natural trace mineral supplement for chickens. I'm worried that my girls aren't getting what they need in their diet. I feed them Purina Layena, and not too many treats this winter, but they are totally porking out on the calcium I put in their coop, and I think they are feather pecking one of my SLW's or she's molting a little. So, I'm worried about what else they might be missing in their diet. My one girl got out of her hospital cage and ran right for the calcium gobbled it down even while the other girls were trying to peck at her bum.