I feed mine a 28% game bird starter. I rarely have problems with shells so I guess they're getting enough calcium. Some people I've talked to do a 20 or 18% for their layers but mine do better on the higher protein.Hey pond! Long time no talk! It's been a couple of years. I had to move on from a good bit of my homestead life because I have been so busy, but I'm starting back again! I'm going to start with quail. I'm getting my quail coop Thursday and my quail on Friday. They are 6 week old japanese quail. I've done a lot of research, but for some of y'all who have more experience, what's some super important notes that I should keep in mind? Thank you!