I keep my 4 year old Piggies in a split level cage. The yesterday day the tube that links the levels fell with Caramel in it we had to help her out but after checking her over she seems ok. They have always had little rows since the started going into season but they fret and miss each other when they are parted. The thing is Caramel the Piggie who was in the tube yesterday is nipping Coco who seems to be nudging Carmel in the side or sniffing her face, She is not breaking the skin when she nips her but she is doing it hard anoth to make Coco squeal, I checked Caramel again to make sure she is not hurt and she seem fine she does not flinch when touched any were. She as also nipped my Daughter because she was stroking Coco she said all she did was place her teeth on her elbow as if to say i am here stroke me and when she did she settled down again. my gut is saying what is happening is linked to the fall, and may be its the scare thats as made her cranky, But i am also wondering if they have got to a point where they need a larger cage although the one they are in is 2ft 10inches by 19 inches and is tall with a second level. Any advice is wellcome