They can when they're excited. You normally see it on fish that are scared, but I often see it on fish that are aggressively feeding too.
The dithers idea was a good idea. A little too risky for me, but it works. I'm glad to hear that your long ear is doing better knifegill.
The dithers idea was a good idea. A little too risky for me, but it works. I'm glad to hear that your long ear is doing better knifegill.