Thanks to its elongated snout, this species can collect small crustaceans, worms and anemones from fissures in rocks and branches of coral. They live on their own or as a couple, always close to crevasses or clumps of coral where they can hide in case of danger. Their young will sometimes venture out into brackish water.
Like most butterflyfish, this species has a vertical band that camouflages its eye and a black spot or ocellus toward the back of the body, which plays the role of a false eye. By diverting its predators' attention, it is able to protect the most vulnerable part of its body.
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