Last Monday I was given ten 1 week old EEs and two BOs. I have them in the coop in a 16 gallon metal wash tub with chicken wire over half of the top and a board over the other half with a 125 watt heat lamp about 18-22" over them. They seem to be very lively, eating, drinking and just being as cute as 12 little buttons. The issue is when I went out a little while ago, one of the BOs has two spots of blood on him, one on his breast and one by a wing. They seem to be growing as I look at them and am wondering if the tub is now too small for the twelve babies. Could he be being picked on? Should I separate? Make a bigger brooder? Sit out there 24/7 and guard him? These are my very first chicks, my first chickens being a full grown flock given to me last fall. Looking for advice please, from all you more experienced chicken keepers!