Background: I've had my 2 piggies (sisters) for 6 months odd. They have taken a long time to settle down, but are slowly getting there. They currently live in the lounge so we see them quite a bit. They have a 1 metre cage (biggest I could fit in) and have separate bedrooms (carrot cottages) - this takes up quite a lot of cage space, but they won't share a large house.
Lately they are constantly out making grumbling/rumbling noises and throwing their noses up at each other. Then there is a far bit of running/jumping/chasing. I'm guessing they aren't getting on. Is this just what GPs do, or are they fed up?
I have bought an outside run so they can go out and stretch their legs, but I haven't built it yet - and it is really muddy and cold out anyway, since they are used to living inside.