I love cleaner wrasses. If you look carefully around when you spot them, you very often find one of their “customers” ready to be cleaned. In this occasion, the goatfish changed colour and started hovering vertically, opening its mouth. That was the signal the wrasse was waiting for. On this picture, you can see the wrasse cleaning the inside of the gills of the goatfish.
Nikon D700, Nikon 28-105 mm macro at 105mm, F8, 1/60th, ISO 400, Ikelite Housing and Ikelite DS160 strobe set on TTL +1.3EV.
Marsa Shagra South House Reef, about 15 metres down, Marsa Alam, Egypt.