Hi Kris
I'm sorry, I don't have any hands-on experience for you, but a good fish info site is
http://aqualandpetsplus.com/Catfish,%20Corydoras.htm
Quotes from the aforementioned site:
1. They usually take two years to attain breeding size, but some breed earlier.
2. Breeding Corydoras: Minimum you’ll need two males and a female. They breed best in larger groups. One trio laying eggs tends to trigger the others. Give them a large shallow tank. Add two trays of ice cubes (simulates rainfall) and watch them breed in the morning. They lay eggs on the glass or your filter stems. Remove the parents or the eggs. Use a single-edged razor blade to (carefully) slice off the eggs after they harden and put them in a half-filled pre-prepared tank. Newborn catlets make very tasty snacks.
3. Corydoras lay eggs on your plant leaves. Cory eggs are white -- unlike most fish eggs.
4. Fry Foods: Weirdly enough, corydoras catlets do best in tanks with a little gravel sprinkled on the bottom. Best first foods include microworms and newly hatched
brine shrimp – even the frozen. You can see baby albino cory bellies turn orange when they eat brine shrimp. Use a sponge filter. They need clean water.
GL with it!
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