Cat-eLog Right Arrow Callichthyidae Right Arrow Corydoradinae Right Arrow Corydoras

Jump to next section Cat-eLog Data Sheet
Scientific NameCorydoras nanus  Nijssen & Isbrücker, 1967
Common NameLittle Corydoras
Type LocalityLittle tributaries of Gran-Rio between Ligoria (= Ligolio) and Awaradam Falls, Brokopondo, Suriname.
PronunciationKory DOOR ass
EtymologyCory = helmet, doras = skin. In this case it was incorrectly used to mean armour (cuirasse) instead of skin in allusion to the dual rows of plates that run along the flanks of this genus. nanus; dwarf.
Jump to next section Species Information
Size 50mm or 2" SL. Find near, nearer or same sized spp.
IdentificationCorydoras are identified by their twin rows of armour plates along the flanks and by having fewer than 10 dorsal fin rays. They are most commonly confused with the other genera in the sub-family, namely Brochis, Scleromystax and Aspidoras.
SexingFemales grow larger and are more full-bodied, this is best observed from above the fish. Males will typically have more pointed as opposed to more rounded fin tips as they mature.
General RemarksOnly ten specimens were collected by scientists and are stored in museum collections and it's a very infrequent aquarium import. The description of the fish doesn't help with identification as (a) there are now several other similar species described and (b) the type material was sub-adult or juvenile fish.
Jump to next section Habitat Information
DistributionSouth America: Suriname and Maroni River basins in Suriname and Iracoubo River basin in French Guiana.
Guyana Waters, Coastal Rivers of Guyanas, Suriname Coastal Rivers, Marowijne (click on these areas to find other species found there)
Guyana Waters, Coastal Rivers of Guyanas, Suriname Coastal Rivers, Suriname (click on these areas to find other species found there)
Guyana Waters, Coastal Rivers of Guyanas, French Guyana Coastal Rivers, Iracoubo (click on these areas to find other species found there)
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Temperature22.0-26.0°C or 71.6-78.8°F (Show species within this range)
Jump to next section Husbandry Information
FeedingWill accept a wide range of commercial foods including tablets, granules and flakes. Live (or frozen) foods such as bloodworm, white worm, grindal worm, Daphnia and tubifex are readily accepted.
FurnitureShade provided by overhanging rock work, arching bogwood, tall or floating plants are all that is required. Ideally substrate should be sand, but rounded gravel is an imperfect alternative. Avoid keeping over rough edged (chipped) gravel, this will increase this risk of damage the fishes barbels when it tries to dig.
CompatibilityA peaceful, shoaling, community fish.
Suggested TankmatesAll Corydoras should be kept in groups of at least 6 of the same species. Otherwise compatible with most other types of fish that are reasonably peaceful, as long as they don't see a Corydoras as a snack.
Jump to next section Further Information
ReferencesZool. Meded. (Leiden)v. 42 (no. 5) - pp41 - Pl. 5 (fig. 1)
Registered Keepers(1) Plecofanatic1989 (k: 2), who also notes: "This is an awesome little cory!!", (2) irshprncsk (p: 2), (3) mindnova, (4) emperorted (k: 6), (5) reneb, (6) Tserisa, (7) steveh28 (k: 4), (8) J Bluto, (9) BasS (k: 5), (10) aquaoahu, (11) Crel, (12) miku (k: 11), (13) yogi88, (14) Tamcon83 (k: 5), (15) pauldoe, (16) Fish777, (17) protopterus, (18) Gulper.

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Breeding ReportsNone.
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Last Update2006 Sep 02 05:53 (species record created: 2006 Sep 02 05:53)