A few of my pullets started laying late last week. We had them on general/grower feed and have about a half bag of that left. I'd been feeding them back their egg shells crushed up and mixed into their food for some calcium, but now I'm out of town but my husband said that one of them laid a soft egg yesterday. Should i have him just go an get a bag of layer feed and switch them to that or is there a way to add calcium into the general feed to get through the rest of the bag?