Fin's Fish Guide
The Dwarf tetra (Hemigrammus iota) is a freshwater fish of the family Characidae that grows up to 2 cm.
Description
The Dwarf tetra is a small characin (Characidae) from fresh water of the Amazon basin in South America. The species grows to about 2 cm and has a slender, partly translucent body. This is one of the very smallest tetras. As a schooling fish it swims in clear streams and rivers and eats small insects, larvae and plant material. The fish is harmless to humans and is popular in the aquarium trade.
Frequently asked questions
How do you recognise the Dwarf tetra?
The Dwarf tetra has an elongate, eel-like body and is mainly silver-grey.
Where does the Dwarf tetra live?
The Dwarf tetra lives in fresh water and is mostly found around mixed bottom. South America: Brazil, Guyana
How big does the Dwarf tetra get?
The Dwarf tetra grows to a maximum of about 2 cm.
Is the Dwarf tetra dangerous to humans?
No, the Dwarf 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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Point your camera at the fish and Fin names the species in seconds. Free, and the Dwarf tetra is one of 12,519 species in the app.
All data
Identification
Appearance
Habitat & distribution
Behaviour & biology
For anglers
Safety
Status & sources
Same genus Hemigrammus
More from the family Characidae
Want the complete picture on the Dwarf tetra?
Point your camera at the fish and Fin names the species in seconds. Free, and the Dwarf tetra is one of 12,519 species in the app.