Catfish of the Month Right December 1997

Bannertail Cory, Flagtail Cory, Halestribet Pansermalle (Denmark), Mrs Schwartz's Cory, Panzerwels (Germany) - Corydoras (lineage 8 sub-clade 4) robineae   Burgess, 1983

Article © Julian Dignall, uploaded December 01, 1997.

The common name of this unusually patterned species comes from Mrs Robine Schwartz, wife of the late, great Brazilian fish exporter who gave his name to C. schwartzi. Mrs Schwartz and her son Adolf (yes, as in C. adolfoi) continue to run the fish exporting business Mr Schwartz began.

The fish is relatively new to the hobby, being described in 1983. It is unusual in being the only currently known Corydoras that possesses a "flag tail". There is another callichthyid (Dianema urostriatum) that also has this striking colouration. Furthermore, both these fish have an apparently natural habit of "hovering" in the middle of the water column as opposed to the normal bottom dwelling associated with most Callichthyids.

This is not the only way this species stands out from the many species of Corydoras out there. It is exceptionally hard to breed and despite being sporadically but regularly available to those that wish to try. That said, one day, someone will do it, document it and photograph or video it for the benefit of all. Until then, we have a lovely patterened and enigmatic species to enjoy.

Down Cat-eLog Data Sheet
Scientific Name Corydoras (lineage 8 sub-clade 4) robineae  Burgess, 1983
Common Names Bannertail Cory
Flagtail Cory, Halestribet Pansermalle (Denmark), Mrs Schwartz's Cory, Panzerwels (Germany)
Type Locality Rio Aiuana, southern tributary of the middle Rio Negro, Amazonas, Brazil.
Pronunciation kor ee doh rass (lineage eight subclade four). - ROBB i nay
Etymology Named for Mrs Robine Schwartz.
Down Species Information
Size 44mm or 1.7" SL. Find near, nearer or same sized spp.
Identification The only known species of Corydoras with a black and white horizontally striped ''flag tail''.
Sexing Mature females are plumper and the males are quite slim for adult Corydoras.
Down Habitat Information
Distribution South America: Upper Negro River basin.
Amazon, Middle Amazon (Solimoes), Negro, Upper Negro (click on these areas to find other species found there)
Amazon, Middle Amazon (Solimoes), Negro, Middle Negro (click on these areas to find other species found there)

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IUCN Red List Category Least Concern, range map and more is available on the IUCN species page. Last assessed 2018.
pH 6.0 - 7.5
Temperature 21.0-26.0°C or 69.8-78.8°F (Show species within this range)
Other Parameters Hardness up to 15°dGH
Down Husbandry Information
Feeding Sinking catfish pellets and bloodworm.
Furniture Needs a rounded substrate or sand. This species is especially prone to barbel loss at the hands of inept water management / inappropriate substrate.
Compatibility Peaceful, keep in groups of 3 or more.
Suggested Tankmates Most small community fish. Tetras and dwarf cichlids are ideal.
Breeding Until recently was one of the mystery corydoras that has yet to spawn in the aquarium. Keep in pairs, or no more than 3 males to 1 female. Condition them at 77F and then drop the temp. to 65F with a large water change. They will not spawn above 75F. Spawning has been attributed to feeding a diet of live tubifex worms. Water should be surprisingly hard for Corydoras, (11.3 dGH) and just alkaline (pH of 7.1 - 7.2). A bare aquarium with a few plants is all that is required, although the plants are for refuge, no reports exist of this species spawning on vegetation. Actual spawning is a mystery; it has always occurred at night. Eggs will hatch after 4-5 days, and the water temperature can be raised to 79F during this period. Initially chopped whiteworm appear to be the best first food, but the fry are quick growers and can soon be moved onto adult food.
Breeding Reports There is but a single breeding report, read it here.
Down Further Information
Reference Tropical Fish Hobbyist v. 31 (no. 9), pp 42, Figs.
Registered Keepers Keeping this species? Why not .
There are 67 registered keepers, view all "my cats" data.
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There are 9 wishes to keep this species, see who wants what.
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There are 22 records of this fish being seen, view them all.
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Last Update 2020 Oct 22 05:04 (species record created: 1997 Dec 01 11:22)

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