Corydoras Sanchesi
Author: Ian Fuller
I first spawned C.sanchesi in September. I consider it to have been a successful spawning,
in as much as I have raised two fry up to adult colour. Both fry are now over 22mm long and
doing well. The details that follow are of the spawning I have been observing today.
21st November 1998.
Conditions
Tank = 450mm x 250mm x 180mm.
Furnished with a box filter and a large piece of Java Moss.
Water Conditions
Temperature. 74°F. pH 7.2 GH 9° KH 2.
Fish
1 male, 35mm long
1 female, 45mm long.
Wild imports.
The male has slight deformation of the caudal and dorsal fins.
Spawning
The spawning followed the typical Corydoras 'T' mating position. The fish took over
eight hours to lay 50 plus 1,8mm diameter eggs.
There was none of the usual hustle and bustle, with the male chasing and pestering the female.
He would just gently glide around her offering himself sideways on, first from one side and
then the other. Eventually the female would make contact and they would lock into a clinch.
During this locked position, when both fish would quiver for a few seconds. Between 3 and 7
light orange coloured eggs would be deposited into the female's ventral fin pouch. The pair
would then part, with the male wandering off rummaging in the gravel for food, and the female
just leaning on one pectoral fin resting. The female would rest for anything up to ten minutes
before scurrying off looking for a suitable place to place her eggs. Most of the eggs were
deposited in the Java Moss, with just one or two stuck to the tank sides and a couple on the
side of the filter.
Based on the first spawning the eggs will take four days to hatch, and the fry are large enough
to take newly hatched brine shrimp three days after hatching. Further foods will be micro worm
and powdered flake, followed by larger offerings of grindal worms and sifted Daphnia as the fry
get larger. When the fry get to around 12mm whole tablet food will also be given. The fry swarm
all over these tablets when they are offered. It's a magic sight to see dozens of fry gathered
all around and feeding so avidly.
Small water changes are made every day once the fry are feeding, with particular care being
taken to use water of exactly the same temperature. If the temperature differs by more than a
degree it can wipe out a complete brood. These water changes are essential if the fry are to
develop to their full potential.
Ian Fuller
Copyright scot cat
www.scotcat.com
Other articles by Ian Fuller
- Chela Dadyborjori
- Correct Temperature for Catfish
- Corydoras 2, Banded Corydoras
- Corydoras amapaensis, Nijssen
- Corydoras, From Small beginings
- Corydoras, The Boys and the Girls
- Dwarf Cory and Pygmy Cory
- Identifying Corydoras
- Starting with Corydoras
- Tail spot Corydoras