Currently, I have three female chins that reside together. It is a mother and her two 8 month old babies. From the start one of the babies, Daisy, always seemed more timid than her sister Zelda. As they have grown, Zelda seems to have become much more dominant and perhaps a slight bully. These days Zelda is more dominant over Daisy and also her mother Peach. Lately, they have appeared to be more grouchy towards each other. I'll be in the other room and suddenly hear terrible squeaky noises, but not like normal squeaks along with jumping and chasing noises. I know the kack sound well so its not just that. Ive examined all the chins and there doesnt appear to be any missing fur chunks, but Daisy's whiskers in particular have been chewed down to almost nothing. Peach's whiskers are also short. However Zelda's are as long as can be! I'm just wondering if maybe it is time to give Zelda her own cage. I feel bad for Daisy because when I run in the room during the terrible noises, shes usually sitting in a corner. I just dont want Zelda to become too much of a bully to the point where someone gets hurt or doesn't get enough food or anything like that. They all snuggle together during the day, but seem grumpy towards each other the rest of the time. What should I do?