Cat-eLog Right Arrow Callichthyidae Right Arrow Corydoradinae Right Arrow Corydoras(ln9)

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Scientific Name Corydoras(ln9) duplicareus  Sands, 1995
Common Name
Type Locality Rio Poranga, 8 km north of the Nobua oba, prior to where it joins a small trib. of the upper Negro R., Brazil.
Pronunciation DOOP lee KARR ee uss
Etymology This specific epithet literally means from two(di=two) rivers(fluviatalis=from the river).
Article - Shane's World Reproduction Breeding Corydoras duplicareus
Jump to next section Species Information
Size 55mm or 2.2" SL. Find near, nearer or same sized spp.
Identification According to the description C. duplicareus has serrations on the posterior edge of the pectoral fin spine, whereas C. adolfoi does not. This of course is not easy to see in a normal aquarium. The best way to see if your fish have these serrations would be to place them into a shallow, preferably white, container and shine a light up from underneath. Then with the aid of a magnifying glass you should be able to see if there are any serrations or not. As a general rule C. duplicareus tends to be a little stockier than C. adolfoi and the black band is usually a little broader.
Sexing Females fuller (when viewed from above) and larger.
Jump to next section Habitat Information
Distribution South America: Brazil: upper Rio Negro
Amazon, Middle Amazon (Solimoes), Negro, Upper Negro (click on these areas to find other species found there)

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pH 6.4 - 7.4
Temperature 20.0-24.0°C or 68-75.2°F (Show species within this range)
Other Parameters Water should be a little soft.
Jump to next section Husbandry Information
Feeding Sinking wafers, frozen blood worms, Brine Shrimp and live black worms if available.
Furniture Substrate of fine gravel or sand. Open areas of substrate surrounded by plants or rocks / bogwood.
Compatibility A peaceful fish exhibiting typical Corydoras behavior.
Suggested Tankmates Compatible with mid-water swimming fish such as neon or cardinal tetras or other South American Characins.
Breeding Corydoras duplicareus spawned at a temperature of 74°F (23°C) and a pH of 7.0. 30 to 40 eggs scattered primarily across the water line, in fact some of the eggs were out of the water all together. The eggs 1.8mm in size are cream in color.Eggs hatched in 5 days. In subsequent spawnings some eggs were deposited on plants as well. Fry initially fed newly hatched baby brine shrimp. Sinking pellets after a few weeks.
Breeding Reports There are 18 breeding reports, read them all here.
Jump to next section Further Information
References Freshwater Mar. Aquar.v. 18 (no. 7) - pp12 - Fig. 6
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Last Update 2019 Jul 17 21:41 (species record created: 2001 Apr 20 00:00)