I have read that maybe some oyster shell for soft egg problems but what if we consistently have 1 of 6 laying soft, the other 5 are normal and fine? They are all in the same coop, same age, same everything. Thoughts?
At least it won't hurt. Maybe she has some sort of difficulty in processing calcium. Guess she could have some internal problem, but you can try to see if there is an external factor. What do they eat?