
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
In the wild
- Water type
- Freshwater
- Climate zone
- Tropical
- Habitat
- Midwater, close to the bottom
- Aquarium trade
- Traded commercially
Conservation status
Classification
- OrderCharaciformes
- FamilyLebiasinidae
- GenusNannostomus
- 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.
Related species
Sources
The figures on this page are compiled from the references below.








