Haven't checked my own thread in a while (and forgot to hit "Post" when I wrote this over the weekend...)
In the end I've got six juveniles. I had started with six silver adults, and of those one disappeared around the time I spotted the fry. Not uncommon not to find a body, thanks to the pleco. Anyway this is all in a 10G, and I've got seven golden adults in the 15G vertical tank in my office - and am now thinking about encouraging them to breed...
Some notes about WCMM:
The babies tend to inhabit the upper areas of the water column and frequently like to shelter under large floating plants like Water Sprite and Salvinia. The babies will invariably be found near the water surface, even before becoming fully free swimming. They are really pretty at 3 to 8 weeks of age because they develop a bright neon green stripe which eventually dulls as they approach adulthood. A school of dozens of them at this age is really pretty.
With being in a 10G maybe there isn't that much difference. Most of the time I was observing, the fry were in the middle. At times over the past month there've been a lot
of floating plants (larger duckweed), but it didn't seem to draw them up.
Last summer about 20 new babies were accounted for. Well fed White Clouds can be quite fecund, and they don't normally feed on their eggs or fry like other egg layers.
I imagine 20 juveniles schooling must be a treat, they're so bright...
And yes, I just finally got around to looking closer at some common write-ups on the species. So it's possible the rasbora might have nibbled on fry, but unlikely the other minnows did. Good to know. (This confirms what I just read on Wikipedia
and Aquarium Tidings