I am feeding my 2-7wk old chicks Blue Seal Starter/grower. I read the ingredients, and I don't know what I am reading, lol. Is there grit in the feed or do I need to give them some? I have started giving them a hard boiled egg mashed up e/o day or so, and am going to start with some plain yogurt as well. Just wondering when to start the grit. Also, it is already darn cold here, and I am worried about when to put my chicks out in the coop. The oldest ones are 7 weeks and the youngest is shy of 3 and I'd like to put them out together but it will be late Dec before they are old enough, no? It will be pretty cold by then and I am worried about them being too cold! I have no way to heat their coop...any suggestions? Thanks, y'all!