I have a converted horse stall (10X 14) for the coop and a big run (approx 40' X 80') plus another paddock that I can extend into if needed. If they get to where they are not getting along I can separate but I am trying to keep my number of pens to a minimum for my base flocks. There is not enough space for 20 hens (IMO) and if one of them has to go, then he has to go but... so long as they are getting along, then I will try to keep them together. I figured that adding to the ladies (getting closer to the 20) wouldn't hurt but wanted to make sure I won't agitate the balance by adding hens.
BTW... so far there have been no problems with the boys. The nondominant one and his hen spend the day together and the dominant Rooster and his hens tend to hang out in slightly different areas. When they feed together, there is not gesturing between the boys and the other than an occasional glare from the dominant roo, which sends the submissive roo out of the way, they seem to have reached an understanding.
My question is "Is it better to leave well enough alone, knowing that typically you need about 20 hens for 2 roosters, since it is currently working, or is it better to disrupt the flock to get it closer to ideal for the number of roosters knowing that there is NOT space for the ideal number.