Jim has come 10 times farther than any other artist in making realistic fish animation.
I totally agree Morgan, he definately has. In fact, the only other program that has even come close was that Breen (sp?) screensaver. I can't think of any other programs other than that.
As for this turning issue, it's just a random bug and doesn't reflect the actual quality of Jim's fish animation. If I made it sound like I was questioning the quality of the animation, then that's my mistake and I apologize for that. As far as I'm concerned, the fish all move VERY convincingly, so Jim has done a great job so far. The only thing left is to give each of the fish it's own AI and animation, but that's later on down the line as Jim has pointed out.
I know for certain that Tangs don't swim like they do in the Aquarium.
Very true, Tangs (at least Regal Tangs) swim very much like a bird flies through the air. They flap their fins like a bird flaps it's wings.