I have two electric yellows that are literally spinning out of control. One began displaying symptoms a day after the other. The first fish is more severley affected. It appears that they have no control over their balance or ability to swim upright. I have caught them and am keeping them in a fry saver (ice cream container) and it seems to have helped support them to balance. The fish are eating food as per normal. They look healthy with no outward signs of disease.
Tank mates include more yellows, colbalts, fullis, aceii and demasonis. Water parameters are all in the normal healthy range for the tank. No other fish seem to be displaying these symptoms.