I have six golden comet pullets that are approximately six months old. They started laying Sept 15. At least four times now I have gotten seven eggs, five normal and too extremely soft that dropped through the roost bars of the cube. They eat Purina Layena crumbles free choice at all times and in the evening that get a snack usually a combination of kale, collards apples sometimes brocolli or cauliflower, melons. Not a whole lot just enough to fill an average dog bowl. They are allowed to roam my small back yard and average of three hours a day longer when I dont have to work. I do not presently give an additional calcium source as I have read that too much in the young bird can cause kidney damage. Should I be giving them additional calcium and if not now then when? I also have not been giving them grit is this necessary If I dont feed scratch?