Tools:
Nikon D2X D-SLR with Nikkor AF 105mm Macro Lens
Aquatica D2 aluminum housing
dual Ikelite DS51 flashes
Speedo, mask, fins, snorkel, 4 lbs weight belt
and 50" chest full of air

Strategy:
not turning blue before 3" Centropyge flavissimus  came out of it's crevice