This big female attached 40-50 eggs to the aquarium glass. I moved them to a small tank by hand. Sadly most of them had fungal growth but I did get two to hatch. Next time I will use methylene blue.
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Spawning Report: Corydoras paleatus
Spawning Report: Corydoras paleatus
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Name: John Satterlee
Scientific Name of Fish* Hoplisoma paleatum
Hobby Name of Fish: Salt and pepper cory
Method of Reproduction: Egg depositor
Number and Gender Distribution of Parents : Mixed group of 6 adults
Origin of Parents: Tank raised
Approximate number of eggs or fry* around 20
Date of Hatch or Birth* Around May 1, 2024
Date of Free Swimming If Hatched: by May 7, 2024
Approx. Number of Fry at 30 Days* around 20
Approx. Number of Fry at 60 Days around 20
Aquarium Conditions:
pH 7.2
General Hardness: 150 ppm
Average Temperature (F) 72-82 depending on season
Salinity: None
Average Nitrate: less than 40 ppm.
Aquarium Size: 10 Gallon
Water Source: Rockville town water
Water Changes: Every two months, 80-90% water change
Filtration System: Sponge filter
Additives: tablespoon of crushed coral
Décor:
Live Plants: Bolbitis
Hiding Places: Clay pot bottom askew on top of rock to provide cover
Substrate: Thin layer of pool sand
Lighting Type and Timing: Home depot shop light, 14 hours light, 10 hours dark
Food Fed to Parents and How Often* Tetramin flake food daily, Hikari algae wafers twice per week, Live baby brine shrimp twice a week. Live black worms as a treat every 2-3 weeks.
Breeding triggers: I have bred these twice. They seem to prefer to breed post-water change and/or if a thunderstorm hits.
Hatching eggs and feeding and raising fry: Eggs were observed on glass sides of tank. I collected these by hand and transferred them to a 5 in x 5 in sq plastic container filled about 1 in high with new dechlorinated water (not from parental tank). I added a drop or so of methylene blue solution just until the water was visibly blue. I also added one half Indian almond leaf. Then I added an air stone and kept the container uncovered. After a few days the eggs hatched and the small fry could be seen darting around. My opinion is that the fry initially ate biofilm which grew on the leaf I added. I followed up by feeding the fry with small amounts of sera micron powder once or twice a day and baby brine shrimp every couple days. I did not do any water changes. After a few days I transferred the fry to a 5 gallon tank with a sponge filter, bolbitis, and a thin layer of sand. They were then fed as I feed the adults.
I sold one or two batches of juveniles at PVAS auctions.
My paleatus babies maybe 2.5 months old. They are still very cute.!
Attempt number 2 they laid 30 eggs and @ 16 hatched in the presence of a few drops of methylene blue. They are so cute! Thank you for the methylene blue tip Frank!