The Emperor tetra (Nematobrycon palmeri) is a freshwater fish of the family Characidae that grows up to 4 cm.
Description
The emperor tetra is a small characin (Characidae) from fresh water of the San Juan and Atrato basins in western Colombia. The species grows to about 4 cm and has a yellow-brown body with a conspicuous broad black longitudinal band, blue-green shining eyes and, in males, an extended middle tail ray. As a schooling fish it swims in clear streams and eats small insects, larvae and plankton. The fish is harmless to humans and is popular in the aquarium trade.
Frequently asked questions
How do you recognise the Emperor tetra?
The Emperor tetra has a torpedo-shaped body, is mainly yellow-gold and shows a horizontal stripes pattern.
Where does the Emperor tetra live?
The Emperor tetra lives in fresh water and is mostly found around open water. South America: Colombia
How big does the Emperor tetra get?
The Emperor tetra grows to a maximum of about 4 cm.
Is the Emperor tetra dangerous to humans?
No, the Emperor 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.
Is the Emperor tetra edible?
Yes, the Emperor tetra is commonly eaten.
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All data
Identification
Appearance
Habitat & distribution
Behaviour & biology
For anglers
Safety
Status & sources
More from the family Characidae

Want the complete picture on the Emperor tetra?
Point your camera at the fish and Fin names the species in seconds. Free, and the Emperor tetra is one of 12,519 species in the app.