Unorganized during water changes. Half asleep and in the middle of moving after 35 years and downsizing from a 3 bedroom house to a 1 bedroom apt.. The cories didn't ask me if I was ready for them to spawn.
Unfortunately these things happen and reading your posts you did the best you could. Mine hatched last week, and I thought I had 6, but it turns out 3 of those were pandas. So I have three and they seem to grow very slowly, compared to pandas and bronze cories. I'm not sure if these are harder to raise than the others, but they do seem a lot different.
You at least had the parents spawn, so they WILL spawn again. I'll send your parcel Monday, as promised. I'll email details too on keeping them.