one thing that I can't figure out is that they all have nip marks on them. I know I had nippy clowns at one time, because I saw that in person.
but that was months ago. I have been watching these fish for months and never have seen any nipping going on. but they are nipped..
it could be either:
a) barbs nipping barbs and SD's nipping SD's (they don't touch any but their own)
b) barbs nipping barbs and SD's
c) SD's nipping barbs and SD's
or it could be no nipping at all -these guys can be pretty skittish and when they flip around and when smaller they can tear fins easily.
I have no idea lol