Which kind of layer feed worked best? In my area I have two choices- Dumor and Purena. I don't recall if my RIR did better on one than the other. Right now I have them on Grower and add hand fulls of the oyster shell in with it. I have a container of the oyster shells next to the feed and they didn't seem to be going for it, so I started throwing some in with the feed. The reason I put them on the grower is that I wanted to integrate my little ones, and didn't want them to get the calcium. I figured (and some people on here told me)the increased protein can't hurt the older ones and they can tell when they need to get more calcium. The other day some discarded eggshells fell and the big girls were all over them! They ate em in a blink of the eye! Maybe they don't like the oyster shells. I think my new plan will be to put the layer feed too high for the young bantams. In any case the RIR is the only one with the soft shell problem and I think she's had it regardless of the feed, and the other ones have never had the problem. So I'm wondering if she has a weakness in this area. She also layed some of her body out the other day, attached to a soft incomplete shell. I thought it was her oviduct but she layed a soft shelled egg tody so I guess that's not what I saw.