Fin's Fish Guide
The Threadfin pleco (Hypostomus nematopterus) is a freshwater fish of the family Loricariidae that grows up to 11 cm.
Description
The Threadfin pleco is an armoured catfish (Loricariidae) from fresh water of the Amazon basin in South America. The species grows to about 25 cm and has a stocky, bony-plated, brown-speckled body and a sucker mouth underneath. As a bottom-dweller it clings by day to wood and stones of flowing rivers and rasps algae, biofilm and detritus by night. The fish is harmless to humans.
Frequently asked questions
How do you recognise the Threadfin pleco?
The Threadfin pleco has an elongate, eel-like body, is mainly brown and shows a spots pattern.
Where does the Threadfin pleco live?
The Threadfin pleco lives in fresh water and is mostly found around stony or rocky ground. South America: French Guiana
How big does the Threadfin pleco get?
The Threadfin pleco grows to a maximum of about 11 cm.
Is the Threadfin pleco dangerous to humans?
No, the Threadfin pleco is harmless to humans. This species is harmless to humans. No specific first aid is needed. Still handle the fish with care: mind the fin rays and the sharp edges of the gill cover, and rinse any scratch with clean water and cover it. For a dirty or deep wound check tetanus status.
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All data
Identification
Appearance
Habitat & distribution
Behaviour & biology
For anglers
Safety
Status & sources
Same genus Hypostomus
More from the family Loricariidae
Want the complete picture on the Threadfin pleco?
Point your camera at the fish and Fin names the species in seconds. Free, and the Threadfin pleco is one of 12,519 species in the app.