Flip Nicklin / Sailfin Tang (Zebrasoma veliferum) profile

David Fleetham / Sailfin tang (Zebrasoma veliferum), Hawaii.

Joel Sartore / Photo Ark / Yellowtail tang (Zebrasoma xanthurum) portrait, Sharjah Aquarium, UAE. Captive, occurs in north western Indian Ocean.

David Hall / Three Yellow tangs (Zebrasoma flavescens) feeding on algae on a Green sea turtle (Chelonia mydas) at reef "cleaning station", Big Island, Hawaii, Pacific Ocean. Endangered.

David Hall / Yellow tangs (Zebrasoma flavescens) and Brown surgeonfish (Acanthurus nigrofuscus) cleaning a Green sea turtle (Chelonia mydas) at "cleaning station", feeding on alage on turtle's skin and shell,...

David Hall / RF - Green sea turtle (Chelonia mydas) at a turtle "cleaning station" being cleaned by Brown surgeonfish (Acanthurus nigrofuscus) and Yellow tangs (Zebrasoma flavescens), Big Island, Hawaii, Pacific O...

Doug Perrine / Green sea turtle (Chelonia mydas) being cleaned of algae by Yellow tangs (Zebrasoma flavescens), Chevron tangs (Ctenochaetus hawaiiensis), Black durgon triggerfish (Melichthys niger) and Parrotfish (S...

Doug Perrine / Green sea turtle (Chelonia mydas) being cleaned of algae by Yellow tangs (Zebrasoma flavescens) and Goldring surgeonfish (Ctenochaetus strigosus) as it swims midwater, Puako, South Kohala, Hawaii, USA...

Doug Perrine / Green sea turtle (Chelonia mydas) opens mouth while being cleaned of algae by Yellow tangs (Zebrasoma flavescens), Goldring surgeonfish (Ctenochaetus strigosus) and Blueline surgeonfish (Acanthurus ni...

Doug Perrine / Green sea turtle (Chelonia mydas) being cleaned of algae by Yellow tangs (Zebrasoma flavescens) and Goldring surgeonfish (Ctenochaetus strigosus) as it swims, Puako, South Kohala, Hawaii, USA, Pacific...

Doug Perrine / Green sea turtle (Chelonia mydas) being cleaned of algae by Yellow tangs (Zebrasoma flavescens) and Goldring surgeonfish (Ctenochaetus strigosus), Puako, South Kohala, Hawaii, USA, Pacific Ocean. Enda...

David Fleetham / Sailfin tang (Zebrasoma veliferum) on coral reef at night, Indonesia, Indo-Pacific.