Brycinus longipinnis - Longfin Tetra

[CK Yeo]

Have been keeping these for a while and they are getting quite huge.
They are supposed to be "longfin tetras" and the dorsal fin is supposed to grow longer but they didn't. Or, something is nibbling on them. Anyone have those with nice flowing fins?

Or is the ID wrong?!

ck
p.s. They are less yellow in real. The yellow colour is partly due to irridescence.

[hwchoy]

very nice specimens!!!

ps: the specimen at the back looks like had major dorsal fin damage before.