I think that peachicks that are raised together will be buddies for life. That does not mean that one will not be dominate over the other one, it just means that they will know each other and get along. The problems you hear about are generally when introducing a strange bird into the flock and during the breeding season.
Last year I had multiple cocks in the breeding pens and there was very little contention, the younger, lesser cocks knew their place and I had no fighting. Being that there is always an exception to the rule I did have to turn out one cock but he was a nut job fighting with everyone, hens included, but once he was gone there were no more problems.
Last year I had multiple cocks in the breeding pens and there was very little contention, the younger, lesser cocks knew their place and I had no fighting. Being that there is always an exception to the rule I did have to turn out one cock but he was a nut job fighting with everyone, hens included, but once he was gone there were no more problems.