My BLogs Right Breeding report for Corydoras (lineage 9) metae by rmc

Down Basics
Overview The first spawn was on Thursday 28th of May 2015. The breeding group consisted of 4 males and 4 females. The individuals were obtained from WC from aquaticclarity.com.
Feeding
1.Live Black Worms (live) few times a week
2.Live Black Worms (live) few times a week
Down Water Parameters (at time of spawning)
pH 7.50 to 7.70
Conductivity 100µs to 200µs
Temperature 23.0°C to 25.0°C
Current Air (vertical)
Down Aquarium
Dimensions The aquarium dimensions were 516mm x 267mm x 325mm (20.3" x 10.5" x 12.8") all Length x Width x Height.
Furniture Silica Sand substrate, 1 floating mop - dark green, one floating bunch of java moss, several medium sized smooth rocks- various shades of grey, large sponge filter and Matten filter.
Filtration One large air driven sponge filter and HMF (Matten filter).
Lighting 1 Aqeueon 20 inch LED fixture.
Heating Room temperature - 72-72 deg. F in the winter - warming to the high 70's in the summer months. Recorded temperature at spawning was 76.4 deg F, on a particularly warm day in late spring.
Down Breeding
Behaviour Spawning began at 6:45 am or shortly before as I witnessed the first eggs being deposited. It appeared 2 females and all 4 males were involved. Females carried 1 or 2 eggs at a time and took minutes to decide where to put them. At one point I saw a female searching for a hiding spot for her egg for more than 15 minutes.
Eggs There were 30 light gray eggs laid which were 2.2mm in diameter.
Time to hatch 6 days
Number: 24
Free swimming: 36 days
Segregation I removed the egg to a small specimen container and provided moderate aeration with an airstone. I added one alder cone which was removed after 24 hours, then did 50% water changes on the container daily with breeding tank water until the eggs hatched. I removed 6 eggs that had fungused during this time. They hatched on the 6th day and it took 24 hours between the time the 1st egg hatched and the last one did.
Fry sizes 7 days: 0mm
14 days: 0mm
21 days: 0mm
Juvenile sizes 1 month: 0mm
3 months: 0mm
6 months: 0mm