Im a chef and at my work we go through roughly 100+ eggs a day an was wondering if there any good for my dubias? I grind all there hard food through a coffee grinder. An I feed the dubias to my leopard gockos colonie. Just wondering if If I should save the egg shells or not an grind them up with the rest of there food....(there also organic free range eggs.) Any imput would be great thanks Matt.