Longfin
A variant of Gold barb (Barbodes semifasciolatus)
Representative Gold barbphoto — a dedicated image of this exact morph isn't available yet.
A finnage mutation extending the fins into flowing veils, most often paired with the gold body for a showy planted-tank fish.
Keeper tips for this variant
Keep with non-nippy tankmates — barbs themselves can nip, so a longfin school should not be mixed with fin-chasing species.