Corydoras atropersonatus • Callichthyidae • Cat-eLog

Cat-eLog Data Sheet
Scientific Name	**Corydoras atropersonatus** Weitzman & Nijssen, 1970
Common Name(s)	Fairy Catfish
Type Locality	Río Conambo at mouth of R. Shione, Río Tigre system, Ecuador, about 2°00'S, 76°30'W.
Pronunciation	Kory DOOR ass - at row person ATT 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. Latin ater = black, personatus = masked.
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. Corydoras atropersonatus is similar in colour pattern to C. sychri. C. sychri is a larger fish, has a pointed snout and has more, finer spots.
Sexing	Female is fuller (when viewed from above) and larger.
Habitat Information
Distribution	South America: Ecuador: East Pastaza state, Rio Tigre system & Peru: Loreto State, Rio Nanay Amazon, Upper Amazon, Tigre (click on these areas to find other species found there) Amazon, Upper Amazon, Tigre, Conambo (click on these areas to find other species found there) Amazon, Upper Amazon, Nanay (click on these areas to find other species found there) (Click the map-icon to show/hide map of species distribution)
pH	5.6 - 7.0
Temperature	21.0-24.0°C or 69.8-75.2°F (Show others within this range)
Husbandry Information
Feeding	Sinking catfish pellets and bloodworm.
Furniture	Needs a rounded substrate or sand. This species is prone to barbel loss at the hands of inept water management / inappropriate substrate.
Compatibility	Peaceful, keep in groups of 6 or more.
Suggested Tankmates	Most small community fish. Tetras are ideal.
Breeding	Breeding tank size = 450 x 200 x 150mm. Water Temp. =76 deg F. Ph =7.2 GH = 6 spawning. Followed the typical ''T'' formation two days after a water change which reduced the temp. by 6deg F. A total of 80 1,5mm diameter eggs were laid between three and five at a time. The eggs were all deposited on the tank sides. The adults were removed when they were observed eating more eggs than they were laying. Once the adults were removed a 50% dose of anti fungal solution was added to prevent infertile eggs from contaminating the fertile ones. 60% of the eggs proved fertile and the fry started to emerge on the fourth day after the eggs were laid, and in a further two days the fry were free swimming and were given their first feeding which consisted of pre-soaked powdered flake food followed by freshly hatched brine shrimp the following day. The fry grew at the following rates. At 7 days = 4mm. At 14 days = 6,3mm. At 1 month = 8,5mm. At 2 months = 13mm Adult colouration was reached in 10 weeks, and in 3months they were 21mm long. 49 fry reached adulthood.
Further Information
References	Beaufortiav. 18 (no. 233) - pp123 - Figs. 2, 6b
Registered Keepers	(1) Yan, (2) Tuti, (3) Daragh, (4) submarinr, (5) Birger Amundsen, (6) AmLi (k: 12), (7) thelivelylady, (8) kenneth knutsen (k: 4), (9) Gry (k: 5), (10) Kampfer (k: 2), (11) gem400, (12) Chlngr (k: 2), (13) dwblackman, (14) kim m (k: 7), who also notes: "Wild fish caught by a freind in Peru in 2005. Spawns often.", (15) vanillarum (k: 6), (16) janne dahle (k: 10), (17) dave.h, (18) wgtaylor (k: 7), (19) Mark Roesner, (20) MHS, (21) MChambers (k: 7), (22) mace, (23) mds (k: 6), (24) Vess, (25) ChristianS (k: 14), (26) gossei (k: 3), who also notes: "Wild caught by MAB 2011.", (27) KillieOrCory, (28) darr3ll, (29) bluefish1, (30) Regina (k: 7), (31) LivHeidiBraten. 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) MChambers (b: 8).
Articles	- CotM 1998 April
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Last Update	2006 Mar 03 00:00 (species record created: 2006 Mar 03 00:00)

Cat-eLog Data Sheet

Scientific Name

Corydoras atropersonatus Weitzman & Nijssen, 1970

Common Name(s)

Fairy Catfish

Type Locality

Río Conambo at mouth of R. Shione, Río Tigre system, Ecuador, about 2°00'S, 76°30'W.

Pronunciation

Kory DOOR ass - at row person ATT 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. Latin ater = black, personatus = masked.

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.

Corydoras atropersonatus is similar in colour pattern to C. sychri. C. sychri is a larger fish, has a pointed snout and has more, finer spots.

Sexing

Female is fuller (when viewed from above) and larger.

Habitat Information

Distribution

South America: Ecuador: East Pastaza state, Rio Tigre system & Peru: Loreto State, Rio Nanay
Amazon, Upper Amazon, Tigre (click on these areas to find other species found there)
Amazon, Upper Amazon, Tigre, Conambo (click on these areas to find other species found there)
Amazon, Upper Amazon, Nanay (click on these areas to find other species found there)

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

5.6 - 7.0

Temperature

21.0-24.0°C or 69.8-75.2°F (Show others within this range)

Husbandry Information

Feeding

Sinking catfish pellets and bloodworm.

Furniture

Needs a rounded substrate or sand. This species is prone to barbel loss at the hands of inept water management / inappropriate substrate.

Compatibility

Peaceful, keep in groups of 6 or more.

Suggested Tankmates

Most small community fish. Tetras are ideal.

Breeding

Breeding tank size = 450 x 200 x 150mm. Water Temp. =76 deg F. Ph =7.2 GH = 6 spawning. Followed the typical ''T'' formation two days after a water change which reduced the temp. by 6deg F. A total of 80 1,5mm diameter eggs were laid between three and five at a time. The eggs were all deposited on the tank sides. The adults were removed when they were observed eating more eggs than they were laying. Once the adults were removed a 50% dose of anti fungal solution was added to prevent infertile eggs from contaminating the fertile ones. 60% of the eggs proved fertile and the fry started to emerge on the fourth day after the eggs were laid, and in a further two days the fry were free swimming and were given their first feeding which consisted of pre-soaked powdered flake food followed by freshly hatched brine shrimp the following day. The fry grew at the following rates. At 7 days = 4mm. At 14 days = 6,3mm. At 1 month = 8,5mm. At 2 months = 13mm Adult colouration was reached in 10 weeks, and in 3months they were 21mm long. 49 fry reached adulthood.

Further Information

References

Beaufortiav. 18 (no. 233) - pp123 - Figs. 2, 6b

Registered Keepers

(1) Yan, (2) Tuti, (3) Daragh, (4) submarinr, (5) Birger Amundsen, (6) AmLi (k: 12), (7) thelivelylady, (8) kenneth knutsen (k: 4), (9) Gry (k: 5), (10) Kampfer (k: 2), (11) gem400, (12) Chlngr (k: 2), (13) dwblackman, (14) kim m (k: 7), who also notes: "Wild fish caught by a freind in Peru in 2005. Spawns often.", (15) vanillarum (k: 6), (16) janne dahle (k: 10), (17) dave.h, (18) wgtaylor (k: 7), (19) Mark Roesner, (20) MHS, (21) MChambers (k: 7), (22) mace, (23) mds (k: 6), (24) Vess, (25) ChristianS (k: 14), (26) gossei (k: 3), who also notes: "Wild caught by MAB 2011.", (27) KillieOrCory, (28) darr3ll, (29) bluefish1, (30) Regina (k: 7), (31) LivHeidiBraten.

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) MChambers (b: 8).

Articles