I'm going to have to measure, but still not fully grown.
New pics at iso 3200 and 1/10 shutter speed. Super slow so if he moved it would blur.
That last one was at 1/30th what a mistake could have been a real nice one. It's very rare for me to see him on the rocks like this.
Too bad my hand reflection is in that one.
All of the pictures were taken through the front pane which I always try and do since its starphire (not sure if it really makes a difference for photos but there's usually less water to shoot through vs a side shot), however I would keep checking him out from the side. Every time I would he'd turn either his head or eyes to maintain eye contact or at least so he could see where I was.