I have committed to getting 4 day old chicks on Xmas eve and 4 more from the same guy on New Years Eve. Today I found 4 one week old chicks on Craigslist ( I REALLY need to stay off of there!) and inquired about them. He wants me to come today. My question is this.. can I get these four ONE WEEK olds today and then put the day old chicks in with them next week? Then add another four one day old chicks another week later? Will I need two brooders or will they get along?