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Dusky Narrow Hatchetfish, photographed on a transparent background
Photo: Daniel Ore Villalba · CC BY 3.0

FreshwaterComing soonUncommon

Dusky Narrow Hatchetfish

Triportheus angulatus

The Dusky Narrow Hatchetfish (Triportheus angulatus) is a tropical freshwater fish of the family Triportheidae. It swims in midwater close to the bottom, between 0 and 5 m deep. It grows to 23.8 cm (standard length, tail fin excluded). The IUCN Red List rates it Least Concern. In the aquarium it is kept at 22–30 °C.

Size
23.8 cmstandard length, tail fin excluded
Temperature
22–30 °C
pH
5.0–7.5
Tank footprint
120 × 30 cm

In the aquarium

Temperature22–30 °C
pH5.0–7.5
Hardness0–20 °dGH
Drawn to scale in a 120 cm tank

In the wild

Water type
Freshwater
Climate zone
Tropical
Habitat
Midwater, close to the bottom

Depth

Conservation status

Classification

  1. OrderCharaciformes
  2. FamilyTriportheidae
  3. GenusTriportheus
  4. SpeciesTriportheus angulatus

Quick answers

Dusky Narrow Hatchetfish size: how big does it get?
It grows to 23.8 cm (standard length, tail fin excluded).
Dusky Narrow Hatchetfish tank size: what is the minimum?
A tank with a footprint of at least 120 × 30 cm.
Dusky Narrow Hatchetfish water parameters: what does it need?
Temperature 22–30 °C, pH 5.0–7.5, hardness 0–20 °dGH.
Dusky Narrow Hatchetfish: is it endangered?
The IUCN Red List rates it Least Concern.

Sources

The figures on this page are compiled from the references below.