I've got one baby who was born along with masses of siblings earlier this year. He's my lone survivor, and the oddball of the group. When he was born he was pretty tiny- just a squiggle, not much bigger then a default-text-sized comma.
Now he's over an inch long, growing FAST (it's scary). The second batch of fry that dropped after his were small too, but since Mollies are livebearers, maybe the more room Momma has for them to grow... the bigger they can possibly get?
I've seen some larger fairly new babies in the
LFS's, too.