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

Jump to next section Cat-eLog Data Sheet
Scientific Name Corydoras polystictus  Regan, 1912
Common Name
Type Locality Upper Rio Paraguay, Descalvados, 16°45'S, 57°40'W, Mato Grosso, Brazil.
Synonym(s) Corydoras virescens
Pronunciation Kory DOOR ass - pol ee STICK tuss
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. From the Greek poly meaning many amd stiktos meaning spotted, alluding to the small spots on this species.
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.

This Corydoras has small spots all over its body, and a few on its dorsal fin. They also have pinkish bellies.
Sexing Females are larger and broader when viewed from above.
Jump to next section Habitat Information
Distribution South America: Brazil: Mato Grosso
La Plata, Paraná, Paraguay (click on these areas to find other species found there)
La Plata, Paraná, Uruga-í (click on these areas to find other species found there)
pH 6.0 - 7.6
Temperature 20.0-25.0°C or 68-77°F (Show species within this range)
Jump to next section Husbandry Information
Feeding This species will eat just about any food that sinks down to their level. Flake foods and sinking pellets/wafers make up a good staple diet, for these fish. Frozen and live foods are great as treats.
Furniture Hiding places in the form of caves, driftwood, and plants are appreciated. As these catfish sometimes cavort out in the open, open swimming space is necessary.
Compatibility Very peaceful fish, and will never bother a tankmate. They are completely harmless.
Suggested Tankmates Avoid large or aggressive fish which are not good tankmates for any Corydoras. Small plecos, tetras and dwarf cichlids are good tankmates.
Breeding This cory spawns the way most corys do. The pair will adopt the ''T'' position, and the female will gather eggs and sperm. Then, she swims to a flat, clean surface (usually the glass), and deposits the eggs. This is repeated numerous times.
Breeding Reports There is but a single breeding report, read it here.
Jump to next section Further Information
References Ann. Mag. Nat. Hist. (Ser. 8)v. 10 (no. 57) - pp216
Registered Keepers Keeping this species? Why not .
There are 16 registered keepers, view all "my cats" data.
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There are 4 records of this fish being seen, view them all.
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Last Update 2011 Oct 05 12:15 (species record created: 2003 Mar 30 00:00)