of the nicest looking Cory's to grace the hobby even
although it has been around for many years is this
months chosen factsheet (April 2006) and it abounds
in its common name of the "Green-Gold Corydoras".
It is of course, Corydoras melanotaenia.
species on first sight could be misconstrued as Corydoras
but the longer overall body shape and the yellow/ochre
fins tell them apart. They used to be a common sight
in aquatic shops up and down the country but the last
few years they have been very thin on the ground and
as such should be snapped up if seen in your local
The green body colouration really abounds when they
are in good condition and in breeding mode.
The original type locality of Tolimais in Colombia,
Honda Province in the Río Magdalena basin,
is doubtful as collectors have been unable to find
this species there. However, collections are made
from the Río Meta basin.
melanotaeniais placed in Lineage
7 alongside other members of the so called "aeneus
group" with the designated type species: C.
eques. A revision in the future would constitute
the resurrection of the genus name Osteogaster.
Meta River basin. Type locality:
Honda, Río Meta system, Colombia.
Male: 5.5cm (2¼ins)
Female: 6.0cm (2½ins)
body shape with a short and compact head.
Upper half of body is metalic
green, this colouration does not cover the ridge
of the back which is a light yellow. A metallic
green eye-mask covers both eyes. The supraoccipial
has a light golden-orange colour.
Care & Compatibility
This is akin to most of this
genus, very peaceful, and would be best housed with
small to medium tank mates such as Tetras, Rasboras
and Danios or in a species
tank for breeding purposes.
Not one of the
easiest Cory's to breed but will spawn as per the
genus. They will lay up to 150 eggs and the larvae
will hatch after 5 days. Mark Bryson from Paisley,
Scotland has been successful with this species, read
his article here.
Males are more slender than
the females and the ventral fins in the female are rounded
whilst the males are pointed.
A good quality flake food and
tablet food for adults with sparodic feedings of frozen
or live food will keep your Corydoras in
good health. Feeding the fry after they use up their
yolk-sac with brine shrimp naupli, microworm and fry
skin,(helmeted Doras) cuirass. melanotaenia: From the Greek
melan = 'black' and the Latin taenia
= ribbon, fillet , tapeworm.
bone at the back at the back of the skull, usually with
Markos & Taylor, Martin (2011). Evolution,
ecology and taxonomy of the Corydoradinae revisited.
Fuller, I.A.M. & Evers, H-G: 2005 Identifying
Corydoradinae Catfish 384 p. Hans A Baensch and Dr
Baensch Aquarium Atlas 2 Seuss, Werner; Corydoras
The most popular armoured catfishes of South America;
Dähne Verlag; p.126. www.