Newbe here with the rays, have had motoros, but can anyone tell me the difference between the leopoldi and henlie ray? As for as easy to care for and aggression with other fish like arrownas, catfish etc. All I know is that they both are black with white dots, if this correct. Wanted a leopoldio fro so long, but can get a henlei a little cheaper to cure my craving for that black and white polk a dot look, which looks more exotic than my motoro..