I'm raising my first chicks and have 6 res sex links. They are 3 weeks old and have been on southern states start and grow medicated since I got them two weeks ago. I guess they like it because I have to fill their one quart feeder ever morning and again at night. They are growing fast and feathering nicely. The local feed store also sells blue seal which I was planning on switching to at laying age. I think it's called extra egg? Are these good feeds?