Thanks for your welcome and replies guys. what I meant about the breathing was the movement of the body when they breath. what is normal?
another question: do they normally move around the cage during the night, as if looking for an escape? or is it hungry?
yea, they are nocturnal and will spend time wondering round the cage at night exploring.
if they are roaming around during the day, check the husbandry and make sure your temps are right and if they are then hunger is usually why they roam during the day