Nikon D5100, Sigma 70-300mm @ 195mm, 1/80 seconds @ f/4.8, with Nissin Di 866 Mark II
This one was taken this Summer in Thessaloniki, at my brothers house.
This particular guy was cleaning his ship-house from the little stones again and again...
Since fishes have very short memory and I don't think he can remember his continuous effort, I thought that he would probably have a feeling of Deja Vu.
Technically, my main concerns were the sync speed of the flash, the control of the ambient light and of course the angle of the shot for the flash-light not to reflect in the fish-tank's glass.