I have 20 hens and 5 roosters...They all grew up together and seem to do fine now...They are 16 weeks old...I have 3 Mille Fleur D'uccle Bantams, A white Black Tailed Japanese Bantam and a RIR .... I know that the d'uccles are said to be very very docile, s fighting with another rooster wont be a worry because sometimes hens are above them in the pecking order....I know that RIR roosters are very agressive but mine seems like a sweetheart...And i dont know much about the japanese bantam...My aunt and mom are from Europe and they raised chickens all their life... They told me that the roosters and hens fought at this age to establish the pecking order, even if they were raised together, after they estabished it then they stopped for life....Please help me! I dont know what to do!!