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

Jump to next section Cat-eLog Data Sheet
Scientific Name Corydoras atropersonatus  Weitzman & Nijssen, 1970
Common Names Fairy Catfish
Panzerwels (Germany)
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.
Articles
Article - CotM 1998 April
Jump to next section Species Information
Size 50mm or 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.
Jump to next section 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)

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pH 5.6 - 7.0
Temperature 21.0-24.0°C or 69.8-75.2°F (Show species within this range)
Jump to next section 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.
Breeding Reports There are 2 breeding reports, read them all here.
Jump to next section Further Information
References Beaufortiav. 18 (no. 233) - pp123 - Figs. 2, 6b
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Last Update 2006 Mar 03 00:00 (species record created: 2006 Mar 03 00:00)