Corydoras diphyes • Callichthyidae • Cat-eLog

Cat-eLog Data Sheet
Scientific Name	**Corydoras diphyes** Axenrot & Kullander, 2003
Common Name(s)	None
Type Locality	Small stream (arroyo) at Estancia María Belén, 8 kilometers from Colonel Patricio Colman, 25°40'13''S, 55°05'52''W, río Paraná drainage, Depto. Caaguazú, Paraguay.
Pronunciation	Kory DOOR ass - die fees
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. Diphyes, from the greek word meaning double nature; in reference to the unique (?) variation in colour patterns expressed in this species (striped and spotted).
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.
Habitat Information
Distribution	Brazil: Restricted to tributaries of the Rio Monday and Rio Acaray, right bank tributaries of the Rio Parana La Plata, Paraná, Acaray (click on these areas to find other species found there) La Plata, Paraná, Monday (click on these areas to find other species found there) (Click the map-icon to show/hide map of species distribution)
pH	6.0 - 7.0
Temperature	18.0-22.0°C or 64.4-71.6°F (Show others within this range)
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. Do not keep over regular, not rounded gravel, this will damaged the fishes barbels when it tries to dig.
Breeding	Has been bred. Breeds after 50% water change with water around 14°C.
Further Information
References	Ichthyological Exploration of Freshwaters v. 14 (no. 3)
Registered Keepers	(1) kim m (p: 2, k: 10), who also notes: "Very productive F1 group.", (2) fulvioander (k: 6), (3) Birger Amundsen, (4) kenneth knutsen, (5) mummymonkey (k: 6), who also notes: "Both fry and adults like to hide in floating plants. Fry will turn upside down to eat newly hatched brine shrimp from the water surface. Very productive species - spawns almost weekly.", (6) Erod93, (7) Shaun (k: 5), (8) Mark Roesner, (9) MHS, (10) dkk (k: 31), who also notes: "Not too warm water. Young fish (larvae) might die when the temperature rises above 24Â°C. Easy to breed. Cold water changes and rich food after a period of warmer water & staple food will make them spawn for sure. They larvae are very inactive the first couple of days and are easy prey. I left my group alone in a peaceful community tank and they doubled their group size within two years (12 --> 25).", (11) Eric Bodrock (k: 4). Click on a username above to see all that persons registered catfish species. You can also view all "my cats" data for this species.
Breeding Reports	(1) dkk (b: 40).
Articles	- CotM 2009 April
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Last Update	2013 Feb 03 15:42 (species record created: 2002 Mar 07 00:00)

Cat-eLog Data Sheet

Corydoras diphyes Axenrot & Kullander, 2003

None

Small stream (arroyo) at Estancia María Belén, 8 kilometers from Colonel Patricio Colman, 25°40'13''S, 55°05'52''W, río Paraná drainage, Depto. Caaguazú, Paraguay.

Pronunciation

Kory DOOR ass - die fees

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. Diphyes, from the greek word meaning double nature; in reference to the unique (?) variation in colour patterns expressed in this species (striped and spotted).

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.

Habitat Information

Distribution

Brazil: Restricted to tributaries of the Rio Monday and Rio Acaray, right bank tributaries of the Rio Parana
La Plata, Paraná, Acaray (click on these areas to find other species found there)
La Plata, Paraná, Monday (click on these areas to find other species found there)

(Click the map-icon to show/hide map of species distribution)

6.0 - 7.0

Temperature

18.0-22.0°C or 64.4-71.6°F (Show others within this range)

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. Do not keep over regular, not rounded gravel, this will damaged the fishes barbels when it tries to dig.

Breeding

Has been bred. Breeds after 50% water change with water around 14°C.

Further Information

References

Ichthyological Exploration of Freshwaters v. 14 (no. 3)

Registered Keepers

(1) kim m (p: 2, k: 10), who also notes: "Very productive F1 group.", (2) fulvioander (k: 6), (3) Birger Amundsen, (4) kenneth knutsen, (5) mummymonkey (k: 6), who also notes: "Both fry and adults like to hide in floating plants. Fry will turn upside down to eat newly hatched brine shrimp from the water surface. Very productive species - spawns almost weekly.", (6) Erod93, (7) Shaun (k: 5), (8) Mark Roesner, (9) MHS, (10) dkk (k: 31), who also notes: "Not too warm water. Young fish (larvae) might die when the temperature rises above 24Â°C. Easy to breed. Cold water changes and rich food after a period of warmer water & staple food will make them spawn for sure. They larvae are very inactive the first couple of days and are easy prey. I left my group alone in a peaceful community tank and they doubled their group size within two years (12 --> 25).", (11) Eric Bodrock (k: 4).

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

Breeding Reports

(1) dkk (b: 40).

Articles