I was admiring my tank today and right in front of me my powder blue look to have had a heart attack. The fish bumped around till he reached the corner of the tank, where he now lies. His color is great and isn't spotty, sick, or scared looking. Although he is breathing heavy and gilling. Please help me. I was told that this has been heard to happen but isn't common. I was also told not to bother him and see what happens. Whats up with him?? His friends want to know too