A bright-yellow butterflyfish with a long forceps-like snout used to pick prey from crevices. It is one of the hardiest and most reef-tolerant Chaetodontidae, making it a good intermediate choice.
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Indo-Pacific, from the Red Sea and East Africa to Hawaii, Mexico and the Galapagos
Climate
🌴 Tropical
Water type
🌊 Marine
Family
Chaetodontidae
Genus
Forcipiger
Part of the Butterflyfish
Disc-shaped, ornately patterned reef fish admired for their elegance; many are specialist feeders demanding mature systems and careful diets, and most are not fully reef-safe.
From the minimum an animal needs to be kept humanely, up to the ideal setup. Bigger is almost always better — minimums are floors, not targets.
Photo coming soon
Minimum
FOWLR with peaceful fish
75 gal / 280 L FOWLR
Forcipiger flavissimus is one of the more reef-tolerant butterflies but still picks at inverts. Needs an established tank with caves, open swim space, and stable params (24–26 °C, sg 1.024).
Photo coming soon
Recommended
Long mature FOWLR or fish-only reef
100–125 gal / 380–470 L
More length lets this graceful swimmer cruise the rockwork. Feed varied frozen (mysis, brine, sponge formulas). Single specimen unless tank exceeds 180 gal.
Photo coming soon
Ideal
Large reef-safe display
180 gal+ / 680 L+ display
Spacious reef with SPS-only corals (avoid LPS/anemones), low-current swim lanes, and a mature ecosystem. Stable conditions matter more than decor for butterflies.
Life & growth stages
How this animal changes through its life — each stage often has its own care, diet and space needs.
Photo coming soon
Egg
Fish eggs are small, translucent spheres, often laid in clutches on plants, substrate, or in a nest — or carried/brooded by a parent in livebearing and mouth-brooding species. A dark eye spot and the curled embryo become visible inside as development progresses.
Photo coming soon
Fry
Newly hatched fry are tiny and semi-transparent, frequently still carrying a yolk sac that fuels them before they feed freely. They lack full fin structure and adult coloration, staying near cover until they can swim and forage on their own.
Photo coming soon
Juvenile
Juveniles look like miniature adults but with developing fins and muted or different markings; many species shift pattern and color as they mature. Growth is rapid at this stage given clean water and steady feeding.
Adult
Adults show the species' full size, finnage, and mature coloration, and are sexually mature. Many fish develop sex-specific differences in size, color, or fin shape, which can intensify during breeding.
Habitat & enclosure
Keep singly in at least 285 L (75 gal), larger for adults, with abundant live rock and crevices to probe. Maintain 24-27 C (75-81 F), pH 8.1-8.4, salinity 1.020-1.025 SG, dKH 8-12. Moderate flow and standard marine/reef lighting are appropriate; the fish uses rockwork to feel secure.
Substrate
Fine sand with plenty of live rock arranged to create cracks and overhangs it can probe for food. Rich biological aquascape supports its natural foraging.
Equipment & setup
Standard reef filtration with a protein skimmer, heater and moderate powerhead flow. Reef LED lighting is sufficient; no specialised lighting is required.
Diet
Carnivore that uses its long snout to extract small crustaceans, worms and fish eggs from reef crevices. In the aquarium it accepts frozen mysis, enriched brine shrimp, chopped seafood and marine pellets; offer small meals two to three times daily. Live rock with microfauna helps newly imported fish settle in.
Behavior & temperament
Peaceful and one of the most reef-compatible butterflyfish; it generally leaves most corals alone but may pick at tubeworm feather crowns, ornamental shrimp and clam mantles. Keep one per tank and pair with calm to semi-aggressive tankmates. It can be shy at first, then becomes a confident mid-water swimmer.
Health
Susceptible to marine ich and velvet like other marines; the elongated snout can be damaged in handling or fine nets. Generally robust once feeding. Quarantine and maintain stable water quality to avoid HLLE.
Tips, DIY & hacks
Often confused with the rarer big-longnose Forcipiger longirostris, which is harder to feed; F. flavissimus is the more adaptable species to seek out. Drip-acclimate, quarantine, and offer enriched mysis to encourage feeding. One of the better butterflyfish for mixed reef setups.
