I added a Swallowtail Angelfish to my tank 2 weeks ago, and she has been eating great and everything seemed normal until today. I have a little cave where she would always go to hide and get cleaned by my 2 shrimp. Today she was just laying in the sand and breathing very heavy. I have seen her lay in the cave like that before but never as long...and this time my Longnose Hawkfish was also in the cave laying almost on top of her. I have never seen that before. After 20 min or so the Angel came out of the cave but is breathing very heavy and not swimming around much. Has anyone seen anything like this? I hope I'm not losing my Angelfish.