Highfin rudderfish / blue chub?

Highfin rudderfish / blue chub?

Observation - Highfin rudderfish / blue chub?. Description: Could do with some help here also if possible please. Fed these fish in the Maldives a few years ago. Think they're highfin rudders (blue sea chub) but would appreciate any thoughts... Quite large fish.

Could do with some help here also if possible please. Fed these fish in the Maldives a few years ago. Think they're highfin rudders (blue sea chub) but would appreciate any thoughts... Quite large fish.