| Scientific Name | Chaetodon flavirostris |
| Common Names | Black Butterflyfish, Dusky Butterflyfish, Orange-nosed Butterflyfish |
| Max Length | 8 inches (20 cm) |
| Min Tank Size | 75 gallons (284 liters) |
| Temperament | Peaceful to semi-aggressive; generally ignores other fish but may show aggression toward conspecifics or similar butterflyfish unless paired. Best housed with peaceful tankmates of similar size and |
| Reef Safe | ✗ No |
The Chaetodon flavirostris captivates hobbyists with its bold, dark elegance and striking features, though it’s a challenge best suited for experienced aquarists. Its deep blackish-gray body, framed by vibrant yellow fins and a bright orange snout, creates a dramatic contrast that commands attention in any aquarium. Hobbyists are drawn to its graceful swimming and curious nature, often seen exploring algae-covered rocks or pairing closely with a mate, reflecting its natural behavior. A 75-gallon tank with ample live rock and open swimming space provides the ideal environment, while a varied diet of meaty and algae-based foods supports its health. Its tendency to nibble corals makes it a fish-only tank star, but its beauty and unique presence reward dedicated keepers who can meet its demanding care needs.
Omnivorous; feeds on coral polyps, benthic invertebrates, and algae in the wild. In aquariums, offer live zooplankton, frozen mysis shrimp, finely chopped seafood, or algae-based flakes with spirulina. Feed small amounts 2-3 times daily. May initially refuse food, requiring live foods or algae-rich rock to encourage feeding.
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