I recently bought a juvenile arowana from one of my local fish stores and would just like some help confirming it is a silver arowana, and not a black arowana. Its smaller than I initially had intended to get (about 4 inches whereas initially I had planned on getting a 6 inch aro) It was listed as a silver but the fins, particularly the bottom fin, is strikingly similar to that of a juvenile Black Arowana. It also has a small blue and orange spot just behind its head. If anyone could confirm if that sounds like it is indeed a silver, that would be much appreciated.