Hi all, thank you for your replies. So the girls are approx 5 months old. Two are from the same litter (cream) and the other from the same mum or dad (shes all brown) (cant remember what I was told). They have been together since before the 12 week mark that I got them from. They are in a C&C 3x3 with plenty of hides, separate food dishes and water bottles. Ive checked them both our and the bully has a scar on her lip/nose and today the one with the scabs has now got a bloody ear. Its definitely bites and not mites as they are regularly treated as they all had ringworm when I got them, so I'm super careful with the monitoring and checking. I'm waiting to get another setup that is bigger but am now wondering if I should just put the bullied one with the male when he is ready, but what do I do in the meantime? Do I separate her away? The other piggy from the same litter seems fine and hasnt got any scuffs etc so shes definitely more submissive. There is always lots of strutting and chasing in the pen too from the bully against the others but mostly the little brown one gets it in the neck! Thanks in advance x