I've seen photos of the sub-adult in California (was here in SoCal and is now in San Fran). I've had three opportunities to buy this one now, but apparently I'm not supposed to get this fish as circumstances have not permitted me to get him all three times, frustratingly enough. In any case, last I heard he is over 16". I would think he has grown since then as it was a couple months back, but I know he was vanquished to a 55 gallon tank by his current owner, because he was out competing the other fish. So, he may be getting stunted. I have been told by both owners that he swims around like a paroon shark, but gets tired and has to lay on the bottom for a few minutes and then he's off again. And, his appetite is that of a RTC. From what I've been told, he has a dominant personality and he out competes everyone for food. He's a Frankenstein's monster and a monster of a fish.