My BLogs Right Breeding report for Corydoras (lineage 9) duplicareus by bekateen

Down Basics
Overview The first spawn was on Wednesday 23rd of November 2016. The breeding group consisted of 1 male and 1 female. Additionally, there were 5 unknown individuals present. The smallest male was at least 38mm SL and the smallest female was at least 45mm SL. The individuals were obtained from LFS.
Feeding
1.New Life Spectrum Thera A 1 mm pellets (dry / prepared) few times a week
2.Black worms (live) weekly
Down Water Parameters (at time of spawning)
pH 7.00 to 7.60
Temperature 24.5°C to 26.0°C
Current Medium
Other Water Params 70% water change once or twice weekly, using tapwater treated with NovAqua Plus.
Down Aquarium
Dimensions The aquarium dimensions were 508mm x 254mm x 305mm (20" x 10" x 12") all Length x Width x Height.
Furniture Thin layer of play sand covers the bottom of the tank. Three acrylic green spawning mops hang in the water, suspended from wine corks.
Filtration Aqueon QuietFlow 40 HOB filter, with a sponge prefilter fitted over the water intake
Lighting 48" Plant grow fluorescent light installed in the room ceiling.
Heating Ambient (no heater in tank). Room thermostatically controlled at approximately 77F.
Down Breeding
Behaviour Not observed. Eggs were found attached to spawning mops and also drifting free over the sandy substrate. The eggs looked fungused, but hatched successfully. Eight more eggs were laid a few days later, and then 65 eggs were laid four days after that. A third spawn, one week later, produced 76 eggs, of which 20 appeared to be unfertilized. They did not fungus, but they looked milky white instead of translucent. Over the next few weeks, the fish spawned repeatedly, about once or twice per week. Egg counts were 75 one week, then 135 after a long holiday weekend, with half the eggs being conspicuously older than other eggs, which were freshly laid.
Eggs There were 5 white eggs laid which were 3.0mm in diameter.
Time to hatch 3 days
Number: 1
Free swimming: 4 days
Segregation The only live fry discovered was left with parents for five days, then transferred to a 2 gal grow-out tank with some other (different) cory fry. On the second and third spawns, the eggs were removed from spawning mops and placed in a separate container to hatch.
Fry sizes 7 days: 8mm
14 days: 0mm
21 days: 0mm
7 days
Juvenile sizes 1 month: 0mm
3 months: 0mm
6 months: 0mm
Fry and juvenile feeding For first five days (while with parents), no special foods were provided (I didn't know it had hatched). After that, fry fed a finely pulverized mixture of various dry foods (flake foods, NLS Spectrum Thera A+ pellets, freeze-dried Tubifex worms, NLS algae pellets). Video of juveniles: https://youtu.be/zmRBkWqzVT0.