Corydoras duplicareus • Callichthyidae • Cat-eLog • PlanetCatfish

Female laying eegs!
Eggs
One day old fry
Corydoras duplicareus (right) & C. adolfoi (left)
One week old fry
Digging in the sand for food
Lateral view

Cat-eLog Data Sheet
Scientific Name	**Corydoras duplicareus** Sands, 1995
Common Name(s)	None
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	Kory DOOR ass - DOOP lee KARR ee uss
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. This specific epithet literally means from two(di=two) rivers(fluviatalis=from the river).
Species Information
Size	55mm (2.2") 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. 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.
Habitat Information
Distribution	South America: Brazil: upper Rio Negro Amazon, Middle Amazon (Solimoes) , Negro, Upper Negro (hover or click on these areas to show maps or find other species found there)
pH	6.4 - 7.4
Temperature	20.0-24.0°C or 68-75.2°F (Show others within this range)
Other Parameters	Water should be a little soft.
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.
Further Information
References	Freshwater Mar. Aquar.v. 18 (no. 7) - pp12 - Fig. 6
Registered Keepers	(1) Jools, (2) Oliver D., (3) soltarii007, (4) Coryman, (5) Barracuda518 (k: 5), (6) philtre, (7) nettaigyo, (8) apistomaster (k: 2), (9) AmLi (k: 15), (10) NEONCORY (k: 21), (11) fulvioander (k: 3), (12) jollysue (k: 6), (13) thelivelylady, (14) cloudies, (15) smithrc, (16) kenneth knutsen, (17) Gry (k: 8), (18) bevans (k: 19), who also notes: "12/11/08-I have successfully raised 15 of the spawn. Most of them are still under 1". They seem to grow very slowly for me. Spawned on 2/27/08. 40-50 eggs. Added a couple of juveniles on 3/21/08. I was hoping at least one was adolfoi, but I think they're both dupis.", (19) Troender (k: 7), (20) gismo5001, (21) amergim, (22) dodobaer (k: 7), (23) Lubbe, (24) hoplo (k: 3), (25) Kampfer, (26) ranmasan (k: 6), who also notes: "Very lively! LFS was selling as C. adolfoi. Had 12, down to 6.", (27) lstratton, (28) thejudgement (k: 3), (29) polardbear (k: 31), (30) fjack88 (p: 2), (31) tcmfish (k: 4), who also notes: "Started with six and two died mysteriously.", (32) stanchung, (33) ucdxmisty, (34) ouscazz (k: 2), (35) markhinch, (36) cory777 (k: 3), (37) Hitch (k: 5), (38) sterba (k: 6), (39) Ironhead (k: 214), who also notes: "75 liter aquaria, white sand and red flint creek gravel mix substrate, RO water with oak/almond leaves. Green yarn mops or java moss perfered spawning sites. Fry left with adults until 12mm then moved to grow out tanks. Food: black worms, white worms,Sera tablets and Vipagran Baby. during 2011 approximately 900 fry raised to 26mm and dispersed.", (40) percyplec (k: 6), (41) corybreed, (42) jp11biod, (43) coryla (k: 300), (44) Korsaaven (k: 33), who also notes: "Spawning group. Have spawned approximately 8 times the past year. Each spawn yields at least 20 fry.", (45) Mark Roesner, (46) arapaimag (k: 5), (47) coelacanth, (48) KansasGuppyGuy (k: 10), (49) ars (k: 20), who also notes: "Regular spawners", (50) CATMANdrew (k: 4), (51) Mata Negra (k: 6), (52) backstreetgambler, (53) anthonyking, (54) ozarowana (k: 8), (55) mds, (56) tjudy, (57) progopvv, (58) gforcefx, (59) seliel, (60) donpetty (k: 6), (61) Ronja. Click on a username above to see all that persons registered catfish species. You can also view all "my cats" data for this species. Add this species to your "my cats" page.
Breeding Reports	(1) ars (b: 30), (2) Ironhead (b: 10), (3) backstreetgambler (b: 10).
More Resources	- Shane's World Reproduction Breeding Corydoras duplicareus - Search Planet Catfish for more on Corydoras duplicareus - BBcode (for use in linking to this page from forum posts) - Look up Corydoras duplicareus on AquaticRepublic.com - Look up Corydoras duplicareus on Fishbase, I.T.I.S. or ispecies search. - URL (for use in linking to the species from anywhere on the web)
Hits	19619 hits.
Last Update	2011 Aug 20 04:46 (species record created: 2001 Apr 20 00:00)

Cat-eLog Data Sheet

Scientific Name

Corydoras duplicareus Sands, 1995

Common Name(s)

None

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

Kory DOOR ass - DOOP lee KARR ee uss

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. This specific epithet literally means from two(di=two) rivers(fluviatalis=from the river).

Species Information

Size

55mm (2.2") 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.

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.

Habitat Information

Distribution

South America: Brazil: upper Rio Negro
Amazon, Middle Amazon (Solimoes) Show it on a map

, Negro, Upper Negro (hover or click on these areas to show maps or find other species found there)

6.4 - 7.4

Temperature

20.0-24.0°C or 68-75.2°F (Show others within this range)

Other Parameters

Water should be a little soft.

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.

Further Information

References

Freshwater Mar. Aquar.v. 18 (no. 7) - pp12 - Fig. 6

Registered Keepers

(1) Jools, (2) Oliver D., (3) soltarii007, (4) Coryman, (5) Barracuda518 (k: 5), (6) philtre, (7) nettaigyo, (8) apistomaster (k: 2), (9) AmLi (k: 15), (10) NEONCORY (k: 21), (11) fulvioander (k: 3), (12) jollysue (k: 6), (13) thelivelylady, (14) cloudies, (15) smithrc, (16) kenneth knutsen, (17) Gry (k: 8), (18) bevans (k: 19), who also notes: "12/11/08-I have successfully raised 15 of the spawn. Most of them are still under 1". They seem to grow very slowly for me. Spawned on 2/27/08. 40-50 eggs. Added a couple of juveniles on 3/21/08. I was hoping at least one was adolfoi, but I think they're both dupis.", (19) Troender (k: 7), (20) gismo5001, (21) amergim, (22) dodobaer (k: 7), (23) Lubbe, (24) hoplo (k: 3), (25) Kampfer, (26) ranmasan (k: 6), who also notes: "Very lively! LFS was selling as C. adolfoi. Had 12, down to 6.", (27) lstratton, (28) thejudgement (k: 3), (29) polardbear (k: 31), (30) fjack88 (p: 2), (31) tcmfish (k: 4), who also notes: "Started with six and two died mysteriously.", (32) stanchung, (33) ucdxmisty, (34) ouscazz (k: 2), (35) markhinch, (36) cory777 (k: 3), (37) Hitch (k: 5), (38) sterba (k: 6), (39) Ironhead (k: 214), who also notes: "75 liter aquaria, white sand and red flint creek gravel mix substrate, RO water with oak/almond leaves. Green yarn mops or java moss perfered spawning sites. Fry left with adults until 12mm then moved to grow out tanks. Food: black worms, white worms,Sera tablets and Vipagran Baby. during 2011 approximately 900 fry raised to 26mm and dispersed.", (40) percyplec (k: 6), (41) corybreed, (42) jp11biod, (43) coryla (k: 300), (44) Korsaaven (k: 33), who also notes: "Spawning group. Have spawned approximately 8 times the past year. Each spawn yields at least 20 fry.", (45) Mark Roesner, (46) arapaimag (k: 5), (47) coelacanth, (48) KansasGuppyGuy (k: 10), (49) ars (k: 20), who also notes: "Regular spawners", (50) CATMANdrew (k: 4), (51) Mata Negra (k: 6), (52) backstreetgambler, (53) anthonyking, (54) ozarowana (k: 8), (55) mds, (56) tjudy, (57) progopvv, (58) gforcefx, (59) seliel, (60) donpetty (k: 6), (61) Ronja.

Click on a username above to see all that persons registered catfish species. You can also view all "my cats" data for this species.

Add this species to your My Cats species list

Add this species to your "my cats" page.

Breeding Reports

(1) ars (b: 30), (2) Ironhead (b: 10), (3) backstreetgambler (b: 10).

More Resources

- Shane's World

Reproduction

Breeding Corydoras duplicareus

- Search Planet Catfish for more on Corydoras duplicareus
Link

- BBcode (for use in linking to this page from forum posts)
Look up AquaticRepublic.com

- Look up Corydoras duplicareus on AquaticRepublic.com
Look up Fishbase

- Look up Corydoras duplicareus on Fishbase, I.T.I.S. or ispecies search.
Link

- URL (for use in linking to the species from anywhere on the web)

Hits

19619 hits.

Last Update

2011 Aug 20 04:46 (species record created: 2001 Apr 20 00:00)

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