Marbled hatchetfish

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

Gasteropelecidae

Marbled hatchetfish

Carnegiella strigata

peacefulshoal

3.5 cm

Adult size

80 L

Minimum volume

8

Minimum group

4 years

Lifespan

Water parameters

Understand these values
pH4 – 7
49
Hardness (GH)1 – 10°
0°30°
Temperature20 – 28°C
18°C32°C
Genus
Carnegiella
Diet
carnivore
Social life
shoal

In the wild

Overview

This marbled hatchetfish, with its keel-shaped belly, owes its genus name to Margaret Carnegie. Very popular, it is not bred commercially: every fish sold is wild-caught, most of them in the Rio Negro basin.

Scientific name
Carnegiella strigata (Günther, 1864)
Classification
Characiformes › Gasteropelecidae
IUCN Red List
Least concern (LC)

Natural habitat

Amazon basin (Brazil, Peru, Colombia, Bolivia), Orinoco and coastal rivers of the Guianas

Observations (GBIF) and localities Native countries Rivers and lakes

It lives in the black water of flooded forests (igapó) and forest creeks, under dense overhanging vegetation, in acidic, very soft water stained brown by leaf litter. The level of the Rio Negro can rise by 15 metres there in the rainy season.

Behaviour

Very peaceful and shy, it lives near the surface and leaves fry alone: it is a good companion for dwarf cichlids. A schooling fish, it is kept in a group. It hunts insects and zooplankton at the surface: small live or frozen prey and floating dry food. It jumps: the aquarium must be covered.

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

Marbled hatchetfish · Aquarius