Fin's Fish Guide
The Blue cubehead (Cubiceps caeruleus) is a saltwater fish of the family Nomeidae that grows up to 29 cm.
Description
The blue fathead is an open-sea fish of the driftfish family (Nomeidae) from the open ocean. The species grows to about 28 cm and has a streamlined, dark, bluish body with a blunt head. It lives pelagically in warm to temperate water and feeds mainly on salps, transparent, jelly-like tunicates that drift in swarms in open water. Juveniles sometimes live in association with floating objects and jellyfishes. The species is sometimes caught with a pelagic trawl. Owing to its open-water life it is little observed and is harmless to humans.
Frequently asked questions
How do you recognise the Blue cubehead?
The Blue cubehead has an elongate, eel-like body, is mainly blue and shows a plain pattern. Blunt head; feeds mainly on salps in open water.
Where does the Blue cubehead live?
The Blue cubehead lives in the sea (marine waters) and is mostly found around open water. Open ocean; warm to temperate pelagic water.
How big does the Blue cubehead get?
The Blue cubehead grows to a maximum of about 29 cm.
Is the Blue cubehead dangerous to humans?
No, the Blue cubehead is harmless to humans. None required: this species is harmless to humans.
Is the Blue cubehead edible?
The Blue cubehead is not usually eaten.
More photos
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All data
Identification
Appearance
Habitat & distribution
Behaviour & biology
For anglers
Safety
Status & sources
Same genus Cubiceps
More from the family Nomeidae
Want the complete picture on the Blue cubehead?
Point your camera at the fish and Fin names the species in seconds. Free, and the Blue cubehead is one of 12,519 species in the app.