I am new to chickens. I have 6 girls - one 7 month old buff orpington, three 6 month old delawares, two 6 month old easter eggers. Everyone but the EE's are laying. I have the chance to get a pair of 7 month old cuckoo marens or a pair of 1 year old silver pheonix. I am really interested in having them but have no interest in raising chicks at this point. I am worried that the roo may become mean and bother my girls. Also is it good to mix the breeds together? I also have plenty of room for them. 50sqft coop with light and windows and 200sqft run with free ranging time available in the yard and garden. Any advice would be great.