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Brown Pencilfish, photographed on a transparent background
Photo: Fajoe · CC BY-SA 3.0

FreshwaterComing soonCommon

Brown Pencilfish

Nannostomus eques

The Brown Pencilfish (Nannostomus eques) is a tropical freshwater fish of the family Lebiasinidae. It swims in midwater, close to the bottom. It grows to 5 cm (total length). The IUCN Red List rates it Least Concern. In the aquarium it is kept at 22–28 °C.

Size
5 cmtotal length
Temperature
22–28 °C
pH
4.5–7.5
Tank footprint
60 × 30 cm

In the aquarium

Temperature22–28 °C
pH4.5–7.5
Hardness1–10 °dGH
Drawn to scale in a 60 cm tank

In the wild

Water type
Freshwater
Climate zone
Tropical
Habitat
Midwater, close to the bottom
Aquarium trade
Traded commercially

Conservation status

Classification

  1. OrderCharaciformes
  2. FamilyLebiasinidae
  3. GenusNannostomus
  4. SpeciesNannostomus eques

Quick answers

Brown Pencilfish size: how big does it get?
It grows to 5 cm (total length).
Brown Pencilfish tank size: what is the minimum?
A tank with a footprint of at least 60 × 30 cm.
Brown Pencilfish water parameters: what does it need?
Temperature 22–28 °C, pH 4.5–7.5, hardness 1–10 °dGH.
Brown Pencilfish: is it endangered?
The IUCN Red List rates it Least Concern.

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Sources

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