Forcipiger flavissimus, commonly known as the Longnose butterflyfish, is a medium-sized butterflyfish with an extremely long nose/mouth. Their body is bright yellow and there is a black spot on the anal fin. The upper half of their face is black and the lower half white to greyish-white, with, of course, the very characteristic long beak.

These fish are quite peaceful towards most other fish. They live solitary, in pairs, or in small groups in a wide variety of habitats, from clearwater reefs to deep passages. In an aquarium, they are best kept alone unless a proven pair can be found. They're true omnivores, feeding on things like worms, eggs, hydroids, and small crustaceans, but seem to prefer the tube feet of echinoderms, the small 'hairs' of sea urchins, and the tentacles/feathers of tube worms.

Like Chelmon, they're well-known Aiptasia eaters (although some individuals might refuse to eat them). Feed them a varied diet of small meaty live and frozen food and be careful when combining them with sea urchins, sea stars, and tube worms!