We recently hatched 18 chicks and now that they are growing (about 6 weeks old now) some of the young roosters are being very aggressive and causing wounds on the other roosters. Any suggestions on what we should do? or do we just let nature take its course and let the dominant ones rise to the top. I wanted to let them grow a bit more so we could make roasters out of them but it's starting to look like a little "Chicken Gladiator" camp out there. Any suggestions?