n reaching our 200th factsheet on ScotCat we are returning
to arguably the most popular of the catfish families,
namely the sub-family Corydoradinae and the growth,
which seems weekly, of the unidentifiable new catches
which are culminating in the CW numbers which have
basically taken over the mantle left by the C-numbers
of the German Magazine, Datz. These CW numbers have
of course started online and originate from the Corydorasworld
web site of Ian Fuller.
The tenth unidentified
Corydoras species is of course the beautiful
CW010 from Peru commonly known as the "Gold Laser"
(sometimes referred to as the Orange laser) which
can be seen in the above picture showing the gold
shoulder stripe starting from the nape of the head
and ending at the caudal peduncle. Similar to CW009
(Green laser) but this species has a yellow shoulder
stripe and a light greener body.
May yet prove
to be a variant of Corydoras
aeneus but these aeneus
variants need to be worked on by the scientists to
determine one way or another. Imported as Corydoras
aeneus "Gold laser" there are a few
aquarists who think that this species is nearer Corydoras
melanataenia than C.aeneus
but as stated earlier work needs to be done on these
Can be a secretive
species and will do better if given plants or other
shelter to hide away in.
is placed in Lineage 7 alongside other members of
the so called "aeneus group" with the designated
type species: C. eques. A revision and description
of CW010 in the future would constitute the resurrection
of the genus name Osteogaster (Cope, 1871).
Gold Laser Cory
Male: 5.5cm (2½ins)
Female: 6.0cm (2¾ins)
Dorsal 1/7; Anal 1/6-7. Stocky
Ground colour yellow with yellow
fins. Gold shoulder stripe starting from the nape
of the head and ending at the caudal peduncle, sometimes
this stripe is all gold and in other specimens there
can be yellow further along on this stripe. Dark green
mid body band running along the full length of the
body. Gold patch on the operculum.
Care & Compatibility
This is akin to most of this
genus, very peaceful, and would be best housed with
small to medium sized tankmates such as Tetras, Rasboras
and Danios or in a species tank for breeding purposes.
Best to purchase 6 individuals or more as they will
be happier in a group.
Lays eggs in batches on the
glass and plants in the aquarium. The best for
breeding ratio would be one male to two females if
given the choice.The first sign of intending spawning
activity is when you see the female with a heavier
girth. If kept in a community tank it would be better
to house the specimens in a species tank set up with
the same water parameters as the main tank.
You can carry out 50% water
changes in this tank once or twice a week to encourage
spawning. For more information
on Corydoras breeding head to the Breeding
Females are stockier
in the body with rounder anal fins. Males are slimmer
with pointed anal fins.
Readily accepts a mixed and
varied diet which includes granular foods, tablet
food, frozen bloodworm and a good quality flake.
fin: The fin forward from the anal cavity. Caudal peduncle: The area between the
dorsal fin and the tail.
Operculum: The bony covering of the gills of
Markos & Taylor, Martin. (2011). Evolution,
ecology and taxonomy of the Corydoradinae revisited.
Fuller, I.A.M. & Evers, H-G:
2005 Identifying Corydoradinae Catfish Ian Fuller
Enterprises. 384 p Ian A. M. Fuller & Hans-Georg Evers
(2011). Identifying Corydoradinae Catfish Supplement
1. Ian Fuller Enterprises.