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Down Cat-eLog Data Sheet
Scientific Name Hypostomus margaritifer  (Regan, 1908)
Common Names Yellow Spotted Hypostomus
Gelbgepunkteter Hypostomus (Germany)
Type Locality Rio Piracicaba, San Paulo, Brazil.
Synonym(s) Hypostomus butantanis, Plecostomus margaritifer
Pronunciation hi POSS tow muss - mar gar IT if err
Etymology Greek, hypo = under + Greek, stoma = mouth. 
Article Link - CotM Right 1999 Right August
Down Species Information
Size 330mm or 13" SL. Find near, nearer or same sized spp.
Identification Very similar to H. regani from the same river. H. margaritifer is deeper bodied and generally more chunky.
Sexing Unknown although examination of the genital area in a group of large adults should show differences.
Down Habitat Information
Distribution South America: Upper and middle Paraná River basin.
La Plata, Paraná, Upper Paraná (click on these areas to find other species found there)
La Plata, Paraná, Middle Paraná (click on these areas to find other species found there)
La Plata, Paraná, Upper Paraná, Tietê, Piracicaba (São Paulo) (click on these areas to find other species found there)
São Francisco, Middle São Francisco, Carinhanha (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 6.0 - 7.6
Temperature 24.0-27.0°C or 75.2-80.6°F (Show species within this range)
Other Parameters Slightly soft water is preferable.
Down Husbandry Information
Feeding Most greens are accepted (cucumber and courgette / zucchini seem favourite), but this fish loves to chew on dead fish and will accept most sinking foods once acclimatized. User data.
Furniture Plants must be well rooted and protected by rock work to avoid accidental up-rooting. Rocks and Bogwood do well, especially large rounded rock. This fish is equally happy on sand or large pea-shaped substrate.
Compatibility As with most large Loricariids, this is a territorial but otherwise peaceful fish. It can be mixed with small fish more easily than other large catfish. Once an appropriate size, will withstand the rigours of an American Cichlid tank.
Suggested Tankmates Anything from tetras to large cichlids, preferably South American, but will mix with all sizes of community fish - be careful adding it with other large catfish that everyone has room to grow.
Breeding Unknown - a real challenge!
Breeding Reports There is no breeding report.
Down Further Information
Reference Proceedings of the Zoological Society of London 1907 (pt 4), pp 796, Pl. 47 (fig. 2).
Registered Keepers There are 5 registered keepers, view all "my cats" data.
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There are 7 records of this fish being seen, view them all.
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Last Update 2020 Sep 19 01:46 (species record created: 2002 Feb 25 00:00)