This shot was taken at the northwest buoy line of local dive site White Rock, the shot was made easier due to slight current advantageously current running south to north as I panned. This Cephalopholis Formosa - Blue Lined Grouper was perched on a patch of coral watching the neapolitan coloured underwater world go about its business. These guys are good fish to practice shooting as they are not as shy as other species so generally if you keep your movements soft and gentle and Breathing relaxed you should have no problems getting close.
My goal here was to highlight the movement of the pectoral and ventral fins as I drift by with the current: if you were a fish the pectoral fin would be your left-hand and the ventral your right-hand. Once I had decided on my shot, I banked right swimming a full circular motion out away from the coral ready to position myself, checking my exposure, white balance and depth gauge before coming into take the pan shot. The trick to executing current shot is to pick your starting and finish points, which I find, helps to make the shot overall smooth and flush.