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Bicolor Foxface
Rabbitfish

Bicolor Foxface

Siganus uspi

A Fiji-endemic foxface reaching about 24 cm, prized as a strong, reliable herbivorous algae grazer for large reef tanks. It is hardy and easy to feed once settled, but it is a poor fit for anything but a spacious, established aquarium. Reef-safe with caution — well-fed adults generally leave stony coral alone, but a hungry fish will pick at soft coral polyps. It carries venomous dorsal, anal and pelvic spines, and is Near Threatened in the wild due to its small native range and reef habitat loss, so essentially all trade stock is wild-collected.

Temperament
Peaceful
Max size
9.4"
Min tank
130 gal
Reef-safe
Reef safe with caution
Diet
Herbivore
Zone
Rockwork, Mid-water
Keep one or a bonded pair.
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Tankmates

How Bicolor Foxface gets on with the rest of the reef, checked pair by pair by the same engine as the live pre-flight.

Best kept apart

A real clash — aggression, predation or a same-genus fight.