So I took a few more photos of my spotted pigeon fry this afternoon. From the first batch of photos, Ryan very astutely noted that there were two basic color morphs; one "clean" and the other "dark." An earlier spawn showed that the parents must both carry an albino gene and that both have only one copy of PB, since some of their offspring are albino and some show stress bars like browns/turks. It turns out that the "clean" babies are, indeed, albino. So Allwin, you can check out these photos to see the difference between albinos and non-albinos at the two week mark (they hatched two weeks ago, have only been swimming for about a week).
The last photo of these four (if I get them in order) shows the albino fry. There is no way to tell conclusively from these photos; you just have to watch them long enough to see the pink pupils.
Thanks for looking, and happy groundhog day!
Lindsay