How I made this series:
Photographing these fish was more persistence than technique. It was easy to bring them close with a sprinkling of food. But they refused to pose for me. To get a dozen decent images I needed to take hundreds of images.
The light in some of the shots was too bright to slow the shutter down below 1/8 sec., even at f/22, so I attached a polarizer and cut some glare as well as some light. Most of the shots were between 1/4 and 1/2 sec. Focal length varied between 55mm and 210mm on a Sony NEX-7.
For future shots, I'll be using a neutral density filter and shooting slower than 1/2 sec. If I get any decent compositions, I'll be posting them here.