I see all these very cool and beautiful pics of fish around here. I must know what the secret is. Every time I try to take picture of my fish they turn out awful because the stupid things won't stay still. Is there a particular setting on my camera I should use? Do I need to adjust the aperture or frame speed or anything like that? I'd love to show off my tanks or do a diary, but I can't get any of the pictures to turn out.