My BLogs Right Breeding report for Corydoras (lineage 9) oiapoquensis by Mol_PMB

Down Basics
Overview The first spawn was on Sunday 25th of February 2018. The breeding group consisted of 0 males and 0 females. Additionally, there were 8 unknown individuals present. The smallest male was at least 40mm SL and the smallest female was at least 40mm SL. The youngest adult was approximately 24 months old. The individuals were obtained from Rare Aquatics, Aqualife Leyland.
Feeding
1.Bloodworm (frozen) few times a week
2.Vitalis (dry / prepared) few times a week
3.Grindal worms (live) few times a week
4.Brineshrimp (Artemia) (frozen) few times a week
Down Water Parameters (at time of spawning)
Conductivity 100µs to 200µs
Temperature 23.5°C to 24.5°C
Current Medium
Other Water Params Rainwater with tannins from rooibos tea.
Down Aquarium
Dimensions The aquarium dimensions were 750mm x 300mm x 400mm (29.5" x 11.8" x 15.7") all Length x Width x Height.
Furniture Sand, rocks, wood, amazon swords
Filtration HMF with electric pump providing flow along tank
Lighting Interpet LED strip on dimming timer
Heating One, behind HMF
Down Breeding
Behaviour Spawned while I was away from home. A small number (3-4) individual eggs deposited on Amazon sword leaves and java moss. I have seen them spawn several times since, using the T-position. However, they seem to hide the eggs and I have not found any more viable ones.
Eggs There were 4 ivory eggs laid which were 1.5mm in diameter.
Time to hatch 1 days
Number: 1
Free swimming: 1 days
Segregation Leaves with eggs on were moved to an external breeder box. Only one was viable but did hatch successfully.
Fry sizes 7 days: 6mm
14 days: 9mm
21 days: 13mm
7 days
14 days
21 days
Juvenile sizes 1 month: 18mm
3 months: 0mm
6 months: 0mm
1 month
3 months
Fry and juvenile feeding Initially microworms, artemia nauplii. Later grindalworms, small blackworms. At a length of about 20mm (<2 months old), the juvenile was too big for the nursery so I moved it in with the parents. It's doing well on their diet of protein pellets, frozen bloodworms and tubifex, and occasional treats of live grindalworms or blackworms.