GeneticOS
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Oneline pencilfish

Nannostomus unifasciatus

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The one-lined pencilfish from the Amazon, the Orinoco and Guyana lives in slow, acidic, densely vegetated waters. It swims at an angle, head up, like Nannostomus eques. There is no reliable record of captive breeding.

Scientific name
Nannostomus unifasciatus
Family
Lebiasinidae

Fact sheet

General

Water
Freshwater
Group
Fish

Taxonomy

Family
Lebiasinidae
Order
Characiformes
Synonyms
Poecilobrycon ocellatus

Origin

Native region
América do Sul

Water

Temperature
23–28 °C
pH
4–7
General hardness (GH)
1–10 °dGH

Size and lifespan

Adult size
4 cm
Minimum tank (volume)
68 L
Minimum tank (length)
75 cm

Behavior

Temperament
Peaceful
Social life
School
Swimming level
Middle
Diet
Carnivore

Care

Care difficulty
Easy

Conservation and trade

IUCN status
Least concern (LC)

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