Spawning Report: Corydoras oiapoquensis

Name

Scientific Name of Fish: Corydoras oiapoquensis

Hobby Name of Fish: Flag-tail panda cory

Method of Reproduction: Egg Scatterer

Number and Gender Distribution of Parents: Group of 6, mixed sex/unknown.

Origin of Parents: Tank Raised, Frank Cowherd

Approximate number of eggs or fry: Adults lay a handful of eggs daily. Of these, maybe a third are any good. I've spotted fry of various ages in the parents' tank.

Date of Hatch or Birth: June through July

Date of Free Swimming If Hatched: June through July

Approx. Number of Fry at 30 Days: 12-15.

Approx. Number of Fry at 60 Days: 1.

Aquarium Conditions:

pH (0 to 14): 6.0-7.0

General Hardness (ppm)

Average Temperature (F) 76-78

Salinity (if brackish or marine)

Average Nitrate (ppm)

Aquarium Size (L X W X H and Gallons): 10 gallon

Water Source: Tap and RO mix

Water Changes (how much and how often): 50% every 1-2 weeks.

Filtration System(s): Air driven sponge

Additives (Salt, iron, etc.)

Décor (Please include all that apply):

Live Plants

Plastic Plants

Leaves

Caves or Similar Hiding Places

Spawning mop

Substrate: Handful of sand

Lighting Type and Timing: LED Strip, 12 hours/day.

Food Fed to Parents and How Often: Mix of flake, frozen, and live blackworms, daily

Food Fed to Fry and How Often: Decapsulated brine shrimp eggs, golden pearls

I can't seem to post photos on this forum.

I use small sections of 3/4 inch PVC pipe to sink my yarn spawning mops. Interestingly, these fish really like to lay their eggs inside those pieces of tube. They also like to lay on the base of the sponge filter, where you'd think they couldn't possibly even fit, and on the filter itself. They don't seem to have a good rate of fertilized eggs and the eggs are heat sensitive/will not develop at all in higher temperatures. Since their eggs can be difficult to move (based on where they lay them), I add plastic plant mats to the tank so the fry can hide. They do not seem to eat their own eggs.