Fin's Fish Guide
The Northern retroculus (Retroculus septentrionalis) is a freshwater fish of the family Cichlidae that grows up to 19 cm.
Description
The northern retroculus is a South American cichlid from the north of the continent, adapted to life in fast-flowing rivers. The species grows to about 19 cm and has a stocky, silvery body with a few dark blotches. It is caught mainly in river rapids, where it stays low to the ground among stones. As a sand-sifting cichlid it takes mouthfuls of sand and gravel from which it sifts insect larvae and small invertebrates. Retroculus species are substrate spawners that lay their eggs in a pit and guard them. The species is a local food fish and is harmless to humans.
Frequently asked questions
How do you recognise the Northern retroculus?
The Northern retroculus has an elongate, eel-like body, is mainly silver-grey and shows a spots pattern. Adapted to rapids; sand-sifting cichlid and substrate brooder that guards the eggs in a small pit.
Where does the Northern retroculus live?
The Northern retroculus lives in fresh water and is mostly found around mixed bottom. Northern South America; rapids of rivers.
How big does the Northern retroculus get?
The Northern retroculus grows to a maximum of about 19 cm.
Is the Northern retroculus dangerous to humans?
No, the Northern retroculus is harmless to humans. None required: this species is harmless to humans.
Is the Northern retroculus edible?
The Northern retroculus is rarely eaten.
More photos
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All data
Identification
Appearance
Habitat & distribution
Behaviour & biology
For anglers
Safety
Status & sources
Same genus Retroculus
More from the family Cichlidae
Want the complete picture on the Northern retroculus?
Point your camera at the fish and Fin names the species in seconds. Free, and the Northern retroculus is one of 12,519 species in the app.