I have a pair (a male Pekin and a female KC). There isn't a way to keep their food seperate so is it ok for her to keep eating her maintenance fees as long as she has the oyster shell (which she does eat). Her eggs have been fine so far but it's only been two weeks and I don't want any health problems down the road. We do have hard water with a high calcium level which is one of the reasons I was worried about my drake eating lay food. Has anyone done this long term? Or have any suggestions about feed?