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

Jump to next section Cat-eLog Data Sheet
Scientific NameCorydoras geryi  Nijssen & Isbrucker, 1983
Common Name(s)
Type LocalityFlooded plain a few km from Trinidad, 14°46'S, 65°50'W, Río Mamoré basin, Beni Prov., Bolivia.
Synonym(s)Corydoras bolivianus
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. Named to honour Dr. Jaques R. Géry.
Jump to next section Species Information
Size 70mm or 2.8" 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.

Males and females look identical until maturity when only the males develop a strong pattern. Very similar to Corydoras pantanalensis except that C. pantanalensis has a hyaline (yellowish) tinge to the colour of the fins.
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.
Jump to next section Habitat Information
DistributionSouth America: Mamoré River basin.
Amazon, Middle Amazon (Solimoes), Madeira, Mamoré (click on these areas to find other species found there)
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pH6.0 - 8.0
Temperature22.5-26.0°C or 72.5-78.8°F (Show others within this range)
Other ParametersdH 2-25.
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
ReferencesRev. Fr. Aquariol.v. 10 (no. 3) - pp78 - Figs. 7, 10e
Registered Keepers(1) kim m, (2) chef (p: 2), (3) Eric Bodrock (k: 3), (4) yukin_761.

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Last Update2007 Aug 06 15:25 (species record created: 2001 Apr 30 00:00)