Fin's Fish Guide
The Cardinalfish (Sphaeramia nematoptera) is a saltwater fish of the family Apogonidae that grows up to 9 cm.
Description
The pajama cardinalfish is a cardinalfish (Apogonidae) from the western Pacific. The species is conspicuously marked: a yellowish head, a broad dark band across the middle and a rear body with red spots, with large eyes. By day it forms groups among the branches of branching coral in sheltered lagoons. Nocturnally it hunts small zooplankton. The male broods the eggs in his mouth. The species is harmless to humans.
Frequently asked questions
How do you recognise the Cardinalfish?
The Cardinalfish has a flattened, disc-shaped body, is mainly yellow-gold and shows a vertical stripes pattern. Striking three-part colour pattern; shelters in branching coral during the day, the male is a mouthbrooder.
Where does the Cardinalfish live?
The Cardinalfish lives in the sea (marine waters) and is mostly found around stony or rocky ground. Western Pacific; branching coral of sheltered lagoons.
How big does the Cardinalfish get?
The Cardinalfish grows to a maximum of about 9 cm.
Is the Cardinalfish dangerous to humans?
No, the Cardinalfish is harmless to humans. None required: this species is harmless to humans.
Is the Cardinalfish edible?
The Cardinalfish is not usually eaten.
More photos
Want the complete picture on the Cardinalfish?
Point your camera at the fish and Fin names the species in seconds. Free, and the Cardinalfish is one of 12,519 species in the app.
All data
Identification
Appearance
Habitat & distribution
Behaviour & biology
For anglers
Safety
Status & sources
Same genus Sphaeramia
More from the family Apogonidae
Want the complete picture on the Cardinalfish?
Point your camera at the fish and Fin names the species in seconds. Free, and the Cardinalfish is one of 12,519 species in the app.