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Digital Calendar photo description
Coachman Commune
The Coachman is a reef fish which, in this case, was shoaling for either protection or breeding interaction.
While diving, a mass of small fish was seen as a band above the reef and, only on much closer inspection,
did each fish stand out.. They band together so that their vertical stripes merge and cause confusion
amongst predators making them appear as one unit. This also makes them quite brazen
and allows divers to enter the shoal and become part of it.
Schooling Coachman (Bannerfish) -. Heniochus diphreutes
The Schooling Bannerfish, or false Moorish Idol, is a marine fish native to areas near Africa, that is sometimes traded, in aquaria, as a less expensive alternative to actual Moorish Idols. White in colour, with two broad diagonal black bands, up to 18cm in length. Similar in appearance to Heniochus Acuminatus, but has larger eye and smaller snout. Dramatically similar to actual Moorish Idols, these fish are only distantly related and appear to only have convergently evolved the same traits. The species are social fish and found in pairs or in shoals. They are a very passive fish and rarely territorial. Some individuals even act as cleaners, especially when young, by removing parasites from other fish.
Nikon D300, Nikkor 10.5 mm, f2.8G fisheye lens, 1/50th sec @ f10, ISO 200
Photograph by Andrew Woodburn