Fiveline Cardinalfish
Cheilodipterus quinquelineatus
The Fiveline Cardinalfish is a small nocturnal reef fish from the Indo-Pacific, commonly sheltering in caves and coral branches by day and foraging at night. It is not a major angling target and is best treated as a reef-associated species of interest to divers and aquarium observers.
Identification points
- Five distinct dark longitudinal stripes running from head to tail
- Large eye and slender, laterally compressed cardinalfish body
- Translucent to pale body with reddish tones and a small terminal mouth
Habitat
Shallow tropical coral reefs, lagoon patch reefs, and sheltered reef slopes; usually hidden in caves, under ledges, or among branching corals during daylight.
Bait notes
Rarely targeted by anglers. If caught incidentally, small pieces of shrimp, mysis-sized baits, or tiny reef jig flies/lures may draw bites.
Behavior
Nocturnal planktivore and small-crustacean feeder; typically forms loose groups or hovers near shelter by day, then emerges at night to feed close to the reef structure.
Caution
Handle carefully; like many small reef fishes it has delicate spines and should be released promptly if caught. Avoid collecting in protected reef areas or where local regulations restrict reef fish harvest.
Fishing notes
Best found with light around reef edges at night, but it is usually encountered as bycatch rather than a sport fish. Use very light tackle if attempting a capture for observation, and avoid damaging coral habitat.