Longfin
A variant of Rosy barb (Pethia conchonius)
Representative Rosy barbphoto — a dedicated image of this exact morph isn't available yet.
A finnage mutation drawing the fins out into long flowing veils, commonly combined with the neon-red body.
Keeper tips for this variant
Avoid fin-nipping tankmates; the trailing fins tear easily and slow the fish slightly, so keep water clean to prevent fin rot.