Fin's Fish Guide
The Blackfin tetra (Markiana nigripinnis) is a freshwater fish of the family Characidae that grows up to 10 cm.
Description
The blackfin tetra is a characin (Characidae) from fresh water of the Paraguay and Pantanal region in South America. The species grows to about 10 cm and has a deep, silvery, laterally compressed body with dark fin margins and a spot on the shoulder. As a schooling fish it swims in rivers and floodplains and eats small insects, larvae and plant material. The fish is harmless to humans.
Frequently asked questions
How do you recognise the Blackfin tetra?
The Blackfin tetra has an elongate, eel-like body and is mainly silver-grey.
Where does the Blackfin tetra live?
The Blackfin tetra lives in fresh water and is mostly found around mixed bottom. South America: Argentina, Bolivia, Brazil, Paraguay, Uruguay
How big does the Blackfin tetra get?
The Blackfin tetra grows to a maximum of about 10 cm.
Is the Blackfin tetra dangerous to humans?
No, the Blackfin tetra 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 Markiana
More from the family Characidae
Want the complete picture on the Blackfin tetra?
Point your camera at the fish and Fin names the species in seconds. Free, and the Blackfin tetra is one of 12,519 species in the app.