how could you tell the colors so soon? i couldnt tell if mine was even going to color up till a few months after it started growing..Well, it appears I didn't really need to ask this. There's literally hundreds of little duster worm babies in my tank right now, I caught my adult duster popping them out earlier today. I also found 4 NEW feather dusters, including 2 that are identical in coloration to the big one I've got. So, I've got 3 green, 3 multicolored black/white, and one purple one.I'm stoked.
Hmmm, if I had to bet money I'd guess that you saw the feather duster pooping and the tiny feathers are colonial feathers.