main differences between this species and Corydoras
paleatus is the size, as the latter grows to around
the 7cm mark while steindachneri only atains
5cm. The males of steindachneri possess a more
elongated dorsal fin and are not as heavy looking
as the females.
The confusion arises when wild
caught paleatus are examined as the males of
this genus also have an extended dorsal fin, as Corydoras
paleatus bred in the trade do not usually exhibit
this trait ( probably bred out of them). But I do
feel that body shape and size is probably the main
criteria for both fish.
Only wild caught
specimens are usually available so care must be taken
with them regarding water quality and so they should
be acclimatised in a quarantine tank. In saying that
once they are over this period they usually settle
down well to aquarium life.
of in a species tank as you can then tend to them
more easily, being the sole occupant, to the business
of good water quality in changing the water regularly.
If your finances stretch to it, as they will not be
a cheap purchase, buy at least 4 as they tend to settle
down better in their own company, you can then be
more certain of having a pair of "Steindachners
Corydoras steindachneri is placed in Lineage
6 which has always been classified as Corydoras
(Lacépède, 1803) so a new genus would
need to be described and a new type species when a
new revision is carried out.
rivers in Paraná State. Type locality:
Brazil, Est. Paraná, Paranaguá (25º32'S,
Male: 4.5cm (1¾ins)
Female: 5.0cm (2ins)
Head short and compact. The
male has an extremely extended dorsal fin.
All fins are colourless and
transparent. The fin rays are banded black and white.
There are three metallic-turquoise patches along the
length of the body, extending from the gill covers
to the caudal fin. The first begins just behind the
eyes and runs backwards to the dorsal fin, the second
is just below the adipose fin, and the smallest is
situated at the the base of the caudal fin. Above
and surrounding these are irregular spots and patches,
which extend the length of the body. The basic body
colour is also visible in places, and a mottled pattern
exists in the head region. The species is similar
aurofrenatus, but the
markings are different, and the males have a far more
extended dorsal fin.
Care and Compatibility
A tank setup would entail a
soft substrate such as sand or a small gravel and
a nice plant covering around the back and sides of
the aquarium. If housed in a community tank a mixture
of small South American characins or the smaller varieties
of Asian Rasboras would suffice, as larger fishes
would intimidate these shy Cory's, and would stop
them eating and would be therefore detrimental to
their overall health.
breeder Ian Fuller of www.corydorasworld.com has bred
a similar species he calls Corydoras cf steindachneri.
He had 8 of these fish in his tank with a pH.of 7.4
and a temperature of 74f (23.3c). They bred in the
usual T-mating clinch formation after a 25% cool water
change the previous day reducing the temperature to
69f (20.5c) The adult fish were moved as they were
in the process of eating the eggs. The number of eggs
totaled between 400-500 and he had a 90% hatch rate.
The fry after 3 days feed on
microworm, pre-soaked powdered flake, then progress
on to Brine Shrimp naupli. Adults can be fed the usual
good quality flake food, frozen bloodworm, tablet
foods, white and grindal worms.
skin,(helmeted Doras) cuirass. steindachneri: Named in honour
of Dr.Franz Steindachner, the Austrian ichthyologist
Markos & Taylor, Martin. (2011). Evolution,
ecology and taxonomy of the Corydoradinae revisited.
Ferraris, C.J. Jr.,
2007. Checklist of catfishes, recent and fossil (Osteichthyes:
Siluriformes), and catalogue of siluriform primary types.
Fuller, I.A.M. & Evers, H-G: 2005
Identifying Corydoradinae Catfish 384p. Ian A. M. Fuller (2001). Breeding Corydoradinae
Catfish, First edition. Ian Fuller Enterprises. 248p. Seus, Werner,
Corydoras. The most popular armoured catfishes of South
America. Dähne Verlag, Ettlingen GmbH. 1993 218p.