Yeah sounds like mine. The damage is only missing scales and chunks from the fins.I have two at the moment. They are occasionally snappy with each other and others however they are too spastic it seems to concentrate any amount of effort for a sustained period of time to really do damage. They are the whirlwind hogs of the tank. Their constant motion however seems to reassure some of the skittish fish in the tank.
I need a real camera lol. The iphone doesn't capture the color these guys have either.No doubt they are the hardest fish i have to catch a pic of lol