How to spot the white-barred boxfish when scuba diving

Anoplocapros lenticularis

Found primarily in tropical and subtropical waters of the Indo-Pacific region, with a few species in the Atlantic and Caribbean. Highest diversity is in the Coral Triangle (Indonesia, Philippines, Papua New Guinea) and surrounding areas. The family includes boxfish, trunkfish, and cowfish.

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When to spot

Present year-round in their habitats. Active during daylight hours, making them readily observable on day dives.

Water

Tropical and warm subtropical waters, typically 23-29°C (73-84°F).

How to spot

Found on coral reefs, seagrass beds, and sandy flats typically from 1-40m depth. Juveniles often in shallower protected areas. Their distinctive box-shaped body and often bright coloration make them relatively easy to spot despite their small size. They swim with unique hovering movements using their transparent fins. Common throughout healthy reef systems in the Indo-Pacific and Caribbean. Species like the Yellow Boxfish and Spotted Trunkfish are particularly recognizable. When stressed, some species can release toxins harmful to nearby fish, so observe respectfully without chasing or harassing them.

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