Scarlet cleaner shrimp, Lysmata amboinensis     (Family Hippolytidae)

Location: Pavona Clavus, Ribbon Reef #5, Great Barrier Reef, Australia

Depth: 20.5 m

Equipment: Nikon D300 with Nikkor 18-55mm f/3.5-5.6G ED II + 5 diopter in Ikelite housing and 2 x Ikelite DS125

Settings: @ 38mm, ISO200, 1/200s, f/16