Neon tetra

Photo: SOK, CC BY-SA 4.0, via Wikimedia Commons

Characidae

Neon tetra

Paracheirodon innesi

peacefulshoal

3 cm

Adult size

80 L

Minimum volume

10

Minimum group

5 years

Lifespan

Water parameters

Understand these values
pH6 – 7.2
49
Hardness (GH)4 – 10°
0°30°
Temperature20 – 26°C
18°C32°C
Genus
Paracheirodon
Diet
carnivore
Social life
shoal

In the wild

Overview

The neon tetra was described in 1936 by the American ichthyologist George S. Myers, from fish that arrived through the aquarium trade. Its name honours William T. Innes, an American aquarist, photographer and publisher who did much to popularise the freshwater aquarium.

It is one of the best-selling aquarium fish in the world; the vast majority now come from fish farms. It is particularly susceptible to “neon tetra disease”, caused by a microsporidian (Pleistophora hyphessobryconis) that can affect other species and is practically incurable once advanced.

Scientific name
Paracheirodon innesi (Myers, 1936)
Classification
Characiformes › Acestrorhamphidae
IUCN Red List
Least concern (LC)

Natural habitat

Upper Amazon (Rio Solimões): Leticia–Tabatinga, Codajás and Rio Purus regions (Peru, Colombia, Brazil)

Observations (GBIF) and localities Native countries Rivers and lakes

The type locality originally given, “near Iquitos” in Peru, was based on imported fish, and the true extent of its range remains poorly known. Confirmed records are concentrated around Leticia and Tabatinga (the “triple border”, with the lower Río Putumayo), then further east around Codajás and the Rio Purus.

It lives in forest streams and small tributaries rather than in the large whitewater channels. The water there is acidic, very soft, black or clear, over branches, roots and leaf litter, sometimes with aquatic plants.

Behaviour

Peaceful and gregarious, it lives in shoals in the middle water layer and feeds on worms, small insects, crustaceans and plant matter. It is kept in a group of at least 8 to 10, with fish of similar size.

It likes slightly cooler water than the cardinal (20 to 26 °C). In the aquarium the female lays a fairly small number of eggs among fine vegetation, ideally in very dim light; the eggs hatch in about a day.

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

Neon tetra · Aquarius