Here is a pic of mine, this was taken in June, it is now August and he has grown quite a bit since.
Male, less than 3 yrs old with small parents. I bought from Aquaman 45 and this is a really nice, active fish with a real character - for instance if I get a pot of food out he will make sucking noises on the bottom of the tank that can be heard on the other side of the room.
I keep him with a young Marbled Motoro pup in a 300 gal (UKgals, I think this is a bit more than US Galls) tank.
Here are a few variations found in Pearl Rays,this is the reason i believe these rays will soon overtake black rays in the must have stakes....just my opinion.