Got a c&c cage 5x2 and put both boys in it yesterday. (They where in a pet shop cage for a few months Till I realised they needed a bigger cage) anyways since being in the bigger cage they seem to be I think it’s play fighting more. They will chase eachother, growl (I think), sometimes do the growl at eachother face to face and jump on each other. Is this normal? Is it because they have a bigger space?