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  • Hisonotus notatus
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Scientific Name Hisonotus notatus    Eigenmann & Eigenmann, 1889
Common Name Black Otocinclus
Type Locality Rio de Janeiro State, Santa Cruz, rio Guandu, Santa Cruz farm - Emperor Pedro II's farm, Brazil, 22°54'40"S, 43°41'7"W. [old locality: Santa Cruz, within urban area of Rio de Janeiro, Brazil.
Synonym(s) Hisonotus minutus, Microlepidogaster notata, Microlepidogaster notatus, Otocinclus notatus
Pronunciation hi sow note uss - no tat uss
Etymology (Greek)Isos=equal + (Greek)noton=back. 
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Size 40mm or 1.6" SL. Find near, nearer or same sized spp.
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Distribution South America: Brazil.
Rio de Janeiro State Rivers (click on these areas to find other species found there)
Minas Gerais State Rivers (click on these areas to find other species found there)
Espirito Santo State Rivers (click on these areas to find other species found there)
Sao Paulo State Rivers (click on these areas to find other species found there)
Rio de Janeiro State Rivers, Macaé (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 2018.
pH 6.5 - 7.5
Temperature 22.0-24.0°C or 71.6-75.2°F (Show species within this range)
Other Parameters dH 20.
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Breeding Unreported.
Breeding Reports There is no breeding report.
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Reference Proceedings of the California Academy of Sciences (Series 2) v. 2, pp 41.
Registered Keepers There is no registered keeper.
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Hisonotus notatus QR code LFS label creator
ARN ref:1.4.320.1390
Last Update 2025 Jan 02 01:38 (species record created: 2006 Nov 11 05:58)