Glorious Arctic Grayling
The noble Arctic grayling has to tolerate the close presence of some Longnose suckers. But not all grayling avoid suckers. Four years ago, I photographed a large male grayling displaying pre-spawning behavior to a male Longnose sucker. I'm dead serious. The sucker seemed shocked when he realized what was going on and zoomed off.
Nikon DX AF Fisheye-Nikkor 10.5mm f/2.8G ED
Ikelite underwater housing
Ikelite wide-angle dome port