Juergen Freund / Schooling Yellow-ribbon sweetlips (Plectorhinchus polytaenia) surrounded by glassy sweepers (Pempheris schomburgki). North Raja Ampat, West Papua, Indonesia

Juergen Freund / Yellow-ribbon sweetlips (Plectorhinchus polytaenia) surrounded by dense shoal of glassy sweepers (Pempheris schomburgki). North Raja Ampat, West Papua, Indonesia

Georgette Douwma / Male scuba diver watching a school of Sweepers (Pempheris sp.) on coral reef. Komodo National Park, Indonesia.

Doug Perrine / Copper sweepers {Pempheris schomburgki} 'The Indians', Virgin Is, Caribbean