We have 8 chicks...4 white wyandottes and 4 red sex links...that are about 4 weeks old. I noticed today that the tail feathers coming in on the wyandottes are red and a little bloody. They are in a 6x2 brooder. Should I try and put Pick No More on the wyandottes? Is it possible they need more protein? Can you give chicks BOSS? Is that too small of a brooder? Thanks for any advice!