AquaticRepublic.com - Hypostomus regani (Loricariidae) All Fishes

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Close-up of head
Close-up of head
Dorsal view
Head on view
Juvenile

All Fishes Data Sheet
Scientific Name	**Hypostomus regani** (Ihering, 1905)
Common Names	Giant White Spot Pleco Regans Shilderwels (Germany)
Type Locality	Rio Piracicaba, São Paulo, Brazil.
Synonym(s)	Plecostomus regani
Pronunciation	hi POSS tow muss - ray gan aye
Etymology	Greek, hypo = under + Greek, stoma = mouth.
Species Information
Size	300mm or 11.8" SL. Find near, nearer or same sized spp.
Identification	Very similar to H. margaritifer from the same river. H. regani is more slender, elongate and has a larger, higher dorsal fin.
Sexing	Unknown although examination of the genital area in a group of large adults should show differences.
Habitat Information
Distribution	South America: Paraná, Paraguay and Uruguay River basin. La Plata, Paraná (click on these areas to find other species found there) La Plata, Paraná, Paraguay (click on these areas to find other species found there) La Plata, Uruguay (click on these areas to find other species found there) La Plata, Paraná, Paraguay, Upper Paraguay, Cuiabá, Claro (click on these areas to find other species found there) Login to view the map.
IUCN Red List Category	Least Concern , range map and more is available on the IUCN species page. Last assessed 2020.
pH	6.0 - 7.5
Temperature	24.0-27.0°C or 75.2-80.6°F (Show species within this range)
Other Parameters	Slightly soft water is preferable.
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.
Breeding	Unknown - a real challenge!
Breeding Reports	There is no breeding report.
Further Information
Reference	Annals and Magazine of Natural History (Series 7) v. 15 (no. 90) (art. 75), pp 558.
Registered Keepers	There is no registered keeper.
Wishlists	Love this species? Click the heart to add it to your wish list. There is no wish to keep this species.
Spotters	Spotted this species somewhere? Click the binoculars! There are 5 records of this fish being seen, view them all.
Forum BBCode

	Look up H. regani on PlanetCatfish.com
	Look up H. regani on Fishbase
	Look up H. regani on Encyclopedia of Life
	Look up H. regani on Global Biodiversity Information Facility
	LFS label creator ARN ref:1.4.17.146
Last Update	2025 Jan 01 12:04 (species record created: 2001 May 05 00:00)