If he has blood on him, but they are no longer fighting, it is likely he has found his place in the rooster pecking order and will not fight again.
I have 4 roosters and 7 hens and they all get on great, and have done for well over 2 years.
Most grew up together, but one rooster was added........then they got fighting, but soon sorted themselves out. I made sure there were no serious injuries.
Just keep an eye on them. If there are no serious fights, and the hens seem healthy in in good feather condition, then leave them be.
If they free range most of the time there is likely going to be few if any problems. However, if they are cooped up for long periods, or confined to a run, then they will get into fights as they have no space to keep a respectful distance from each other.
Usually only the dominant rooster will mate with the hens. If another one tires to mate, then he will be chased off by the dominant one.
If you hens start to get missing feathers off their backs then you will have to get rid of most of the roosters and just keep one.