So i have a blue tang that is ill right now and in quarantine. However i wanted to discuss her behavior from when she was healthy. Ocassionally she would slap they glass very rapidly with her tail. It honestly made a cool noise. Also she likes to smack/bite the heater so it bumps the glass. She also broke a glass thermometer by beating it into the glass. Anyone had a tang do this? She doesn't get aggressive just likes to hit equipment.