
Source: Wikimedia Commons
Ostracion meleagris
A small boxfish of Indo-Pacific and eastern Pacific reefs. Females are dark brown with white spots; males have a black, white-spotted back and blue sides with yellow markings. Its body is encased in a bony box.
The whitespotted or spotted boxfish, Ostracion meleagris, ranges from East Africa to Mexico, north to southern Japan and Hawaii and south to New Caledonia (FishBase). It reaches 25 cm TL. Its body is enclosed in a box of joined hexagonal bony plates. The sexes differ strongly: females and juveniles are dark brown with white spots, while males have a black, white-spotted back and blue sides with yellow bands and spots. Juveniles with male colours have not been seen, suggesting females change sex. It lives in clear lagoons and seaward reefs, feeding on tunicates, polychaetes, sponges, molluscs, copepods and algae. Boxfishes are known to release a toxin (pahutoxin) in skin mucus when stressed, which in a closed aquarium can harm other fish and the boxfish itself. It is sold in Japanese marine shops for its striking sexual dichromatism and also occurs along Japanese coasts.
Source: Wikipedia (CC BY-SA 4.0)
The Whitespotted boxfish grows to Up to 25 cm TL (FishBase).
Origin
Indo-Pacific and eastern Pacific (East Africa to Mexico; southern Japan and Hawaii to New Caledonia)
Lifespan
Few reliable data
Size
Up to 25 cm TL (FishBase)
Temperature
23〜26℃
Omnivore (small invertebrates, frozen foods, algae)
Edited & verified by: BreederDirect editorial team
The taxonomic, regulatory, and husbandry data on this page are compiled and verified against the authoritative primary sources below.
Primary sources
Accepted name: Ostracion meleagris Shaw, 1796
Synonyms: Ostracion camurum Jenkins, 1901, Ostracion clippertonense Snodgrass & Heller, 1905, Ostracion lentiginosus Bloch & Schneider, 1801, Ostracion meleagris meleagris, Ostracion oahuensis Jordan & Evermann, 1903, Ostracion punctatus Bloch & Schneider, 1801, Ostracion sebae Bleeker, 1851, Ostracium sebae Bleeker, 1851
Authority databases: GBIF · GBIF · FishBase
Nomenclature follows global taxonomic authority databases.
Not listed in the CITES Appendices (checked on Species+). Not a designated invasive alien species in Japan. It also occurs in southern Japan and the Ryukyu Islands; collecting in Japan must follow each prefecture's fisheries adjustment regulations. Never release aquarium fish into the sea.
Sources: Species+ (CITES) / FishBase
Regulations may change. Always verify the latest information with the relevant authorities.
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Few species-specific temperature data. Be prepared to run activated carbon and make large water changes if it releases toxin.
A slow swimmer that dislikes strong flow and tight crevices; give open space and a calm setting to minimise stress.
A slow feeder that suffers with fast or nippy fish. Stress-induced toxin release can kill tankmates, so mix with great care.
It eats tunicates, worms, sponges and molluscs, so it is unsuitable for invertebrate-rich tanks. It is not known for eating corals, but cannot be called reef-safe.
Feed small portions of frozen mysis, chopped clam and shrimp, and foods containing algae several times a day.
Boxfishes can release skin toxin under stress and wipe out a tank, so take particular care during transport and introduction. Collecting in Japanese waters must follow prefectural fisheries regulations.
Advanced. This is an advanced-level species. It requires specialized equipment and advanced husbandry skills with precise environmental control.
Whitespotted boxfish typically reaches Up to 25 cm TL (FishBase) as an adult. Size may vary depending on care conditions and individual genetics.
Whitespotted boxfish feeds on: Omnivore (small invertebrates, frozen foods, algae). Aim for a balanced diet with appropriate feeding frequency.
The price of Whitespotted boxfish varies significantly depending on morph, size, and lineage. Check our market price page for the latest pricing information.
Last updated: September 23, 2026