Help, please. Our otherwise healthy strawberry peacock cichlid a few days ago started turning in tight circles frequently (not all the time, but once every few minutes, sometimes a few in a row). Should we be worried, anything we should look out for? Eating fine. Tested the water = good. Did water change. Water at correct temperature. No other fish at all, nothing new added. Short video here (), in case interested. I would appreciate any thought you might have?