Achilles Tangs are one of those fish that I see often, but rarely photograph because they zip away when my camera is raised. They’re particularly plentiful at Mauna Lani, and last weekend I encountered this one that was a bit slow with its escape.
Achilles Tang
Graham's Island 
What superb colouring. Is that chocolate brown or black?
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It’s black with a blueish tinge depending on the light.
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Gorgeous colors!
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Ditto
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Its markings are unmistakable!
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