Fin's Fish Guide
The Dusky cardinalfish (Phaeoptyx conklini) is a saltwater fish of the family Apogonidae that grows up to 9 cm.
Western Atlantic and Caribbean, in shaded crevices, caves and large sponges of coral and rocky reefs.
Description
The dusky cardinalfish is a small, semi-transparent reef fish of the family Apogonidae (cardinalfishes) reaching about 9 cm. The red-brown body has large eyes and is dotted with fine dark spots. By day it shelters in shaded crevices, caves and large sponges of coral and rock reefs in the western Atlantic and the Caribbean; at night it emerges to hunt small crustaceans and zooplankton. Like many cardinalfishes it is a mouthbrooder: the male broods the egg ball in his mouth until the young hatch. Because of its hidden, nocturnal lifestyle it draws little notice, but it is a familiar resident of shaded reef cavities.
Frequently asked questions
How do you recognise the Dusky cardinalfish?
The Dusky cardinalfish has a torpedo-shaped body, is mainly red-orange and shows a spots pattern. Small, translucent red-brown reef fish with large eyes and fine spots; the male broods the eggs in its mouth.
Where does the Dusky cardinalfish live?
The Dusky cardinalfish lives in the sea (marine waters) and is mostly found around stony or rocky ground. Western Atlantic and Caribbean, in shaded crevices, caves and large sponges of coral and rocky reefs.
How big does the Dusky cardinalfish get?
The Dusky cardinalfish grows to a maximum of about 9 cm.
Is the Dusky cardinalfish dangerous to humans?
No, the Dusky cardinalfish is harmless to humans. None required: this species is harmless to humans.
Is the Dusky cardinalfish edible?
The Dusky cardinalfish is not usually eaten.
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All data
Identification
Appearance
Habitat & distribution
Behaviour & biology
For anglers
Safety
Status & sources
Same genus Phaeoptyx
More from the family Apogonidae
Want the complete picture on the Dusky cardinalfish?
Point your camera at the fish and Fin names the species in seconds. Free, and the Dusky cardinalfish is one of 12,519 species in the app.