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

Jump to next section Cat-eLog Data Sheet
Scientific Name Corydoras nanus  Nijssen & Isbrücker, 1967
Common Name(s) Little Corydoras
Type Locality Little tributaries of Gran-Rio between Ligoria (= Ligolio) and Awaradam Falls, Brokopondo, Suriname.
Pronunciation Kory DOOR ass
Etymology Cory = 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 (2") SL. Find near, nearer or same sized spp. []
Identification Corydoras 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.
Sexing Females 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 Remarks Only 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
Distribution South 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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Temperature 22.0-26.0°C or 71.6-78.8°F (Show others within this range)[]
Jump to next section Husbandry Information
Feeding Will 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.
Furniture Shade 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.
Compatibility A peaceful, shoaling, community fish.
Suggested Tankmates All 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.
Breeding Unreported.
Jump to next section Further Information
References Zool. 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) Krawallo (p: 2).

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Breeding Reports None.
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Last Update 2006 Sep 02 05:53 (species record created: 2006 Sep 02 05:53)

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