No jumping, found it on its side one day, struggling, getting stuck against a powerhead intake, basicaly unable to maintain an upright condition.
All water parameters were in check. No physical damage to the fish and no signs of disease. No other fish were affected. I removed it from the tank at that point.
You target feed a cc star by putting some food right next to it till it grabs it. There are plastic feeding prongs
you can get to help. Otherwise the fish will eat it all before the star gets it.