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Scientific Name Nannostomus trifasciatus  Steindachner, 1876
Common Names Three-lined Pencilfish
Dreiband-Ziersalmler (Germany), Three-stripe Pencilfish
Type Locality Amazon River near mouth of Rio Negro and Tabatinga, Brazil.
Pronunciation nan oss tow muss.
Etymology Latin, nannus = small + Greek, stoma = mouth. 
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Size 33mm or 1.3" SL. Find near, nearer or same sized spp.
Sexing Females, when in good condition, have a fuller body. Males tend to have brighter colours, typically a lot more red in the colouration.
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Distribution South America: Peruvian, Bolivian, and Brazilian Amazon River basin, Negro River basin, and Guyana.
Amazon (click on these areas to find other species found there)
Amazon, Middle Amazon (Solimoes), Negro (click on these areas to find other species found there)
Guyana Waters (click on these areas to find other species found there)

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IUCN Red List Category Least Concern, range map and more is available on the IUCN species page. Last assessed 2020.
Hop to next section Husbandry Information
Suggested Tankmates Avoid boisterous tankmates, this is a small slow moving species that shoals.
Breeding Reports There is no breeding report.
Hop to next section Further Information
Reference Sitzungsberichte der Kaiserlichen Akademie der Wissenschaften. Mathematisch-Naturwissenschaftliche Classe v. 74 (1. Abth.), pp 123 [75], Pl. 9 (fig. 2).
Registered Keepers There is no registered keeper.
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There are 2 records of this fish being seen, view them all.
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Last Update 2020 Oct 22 03:52 (species record created: 2010 Dec 17 12:42)