Emperor tetra

Photo: Dennis Lamczak, CC BY-SA 3.0, via Wikimedia Commons

Characidae

Emperor tetra

Nematobrycon palmeri

peacefulshoal

4 cm

Adult size

100 L

Minimum volume

8

Minimum group

5 years

Lifespan

Water parameters

Understand these values
pH5 – 7.5
49
Hardness (GH)1 – 12°
0°30°
Temperature23 – 27°C
18°C32°C
Genus
Nematobrycon
Diet
carnivore
Social life
shoal

In the wild

Overview

The emperor tetra, with its violet sheen and trident-shaped tail in the male, is one of the best choices for beginners: beautiful, hardy and cheap. Almost all fish in the trade are captive-bred. It is sometimes confused with N. lacortei, the only other species in the genus.

Scientific name
Nematobrycon palmeri Eigenmann, 1911
Classification
Characiformes › Acestrorhamphidae
IUCN Red List
Data deficient (DD)

Natural habitat

Colombia: San Juan and Atrato basins

Observations (GBIF) and localities Native countries Rivers and lakes

It is ubiquitous within its range, in slow stretches of rivers, small tributaries and oxbows, with livebearers (Priapichthys), cichlids (Andinoacara) and various characins and Loricariidae.

Behaviour

One of the best tetras for a community tank: lively, peaceful and colourful, it lives with most livebearers, Danio, Rasbora, other tetras, Corydoras, small Loricariidae, gouramis and dwarf cichlids, but not with large species that would eat it. Keep it in a shoal. A micropredator: fine dry food, but not exclusively, with small live or frozen prey every day.

Sources:FishBase Seriously Fish GBIF · Base map: Natural Earth

Emperor tetra · Aquarius