I was messing around with my camera and shot a video of my big male champso. He's about 7 or 8 years old and over a foot long.
Moves like a missile a lot of the time.
You may want to click 'high quality' below the right side of the video to get a better look. Air bubbles in the water made the regular quality image stink.
http://www.youtube.com/watch?v=oBWonEF_V-Y