Scientific Name
Nannostomus eques

Common Name
Brown pencilfish

Biology
Feeds on worms, crustaceans and insects (Ref. 7020). Oviparous (Ref. 205). Aquarium keeping: in groups of 5 or more individuals; minimum aquarium size 60 cm (Ref. 51539).

Classification

Classified By

Steindachner, 1876

Class

Ray-finned fishes (Actinopterygii)

Order

Characins (Characiformes)

Family

Pencilfishes (Lebiasinidae)

Distribution

Region

South America

Distribution

South America: central and upper Amazon.

Range

Unknown

Environment

Climate

Tropical

Water Temperature From

23 °C

Water Temperature To

28 °C

Depth From - meters

Unknown m

Depth To - meters

Unknown m

Zone

benthopelagic

Environment

Freshwater; ; pH range: 5.0 - 6.0; dH range: 5 - 12 benthopelagic

Trophic Level

3.27 s.e. 0.40 Based on food items.

Occurs in Marine / Salt water

False

Occurs in Brackish water

False

Occurs in Fresh Water

True

Occurs on Reefs

False

Is kept in Aquariums

True

Physical Size and Genetics

Maximum Length

5.0 cm

Common Length

Unknown cm

Phylogenetic Diversity Index

PD50 = 0.5000 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses

Aquarium: commercial

Vulnerability

Low vulnerability (10 of 100)

Resilience

Medium, minimum population doubling time 1.4 - 4.4 years (tm = 2)

Threat To Humans

Harmless

IUCN Red List Status

Not Evaluated