Alex Mustard / School of Oriental sweetlips (Plectorhinchus vittatus) gather tightly together as they rest during the day, with a Clown triggerfish (Balistoides conspicillum) and Midnight snappers (Macolor macularis...

Alex Mustard / Reef manta (Mobula alfredi) visiting a cleaning station on a coral reef with a school of Onespot snappers (Lutjanus monostigma), Oriental sweetlips (Plectorhinchus vittatus) and Sabre squirrelfish (Sa...

Alex Mustard / Oriental sweetlips (Plectorhinchus vittatus) pair. South Ari Atoll, Madlives. Indian Ocean.

Jordi Chias / Oriental sweetlips (Plectorhinchus vittatus) South Ari Atoll, Maldives, Indian Ocean.

Alex Mustard / Ribbon sweetlips (Plectorhinchus polytaenia) USAT Liberty Wreck, Tulamben, Bali, Indonesia. Java Sea

Alex Mustard / Harlequin sweetlips (Plectorhinchus chaetodonoides) cleaned by a pair of bluestreak cleaner wrasse (Labroides dimidiatus). South Atoll, Tubbataha Atolls, Tubbataha Reefs Natural Park, Palawan, Philipp...

Alex Mustard / A mixed school of diagonal-banded sweetlips (Plectorhinchus lineatus) and ribbon sweetlips (Plectorhinchus polytaenia) gather above plate corals, with convict blennies (Pholidichthys leucotaenia). Sau...

Alex Mustard / RF - A school of oriental sweetlips (Plectorhinchus vittatus) gather tightly together as they rest during the day on a coral reef. Laamu Atoll, Maldives. Indian Ocean (This image may be licensed eithe...

Tui De Roy / Ribbon sweetlips (Plectorhinchus polytaenia) at Giant barrel sponge (Xestospongia muta) Tulamben, North coast, Bali, Indonesia. Lesser Sunda Islands.

Fred Olivier / Harlequin sweetlips (Plectorhinchus chaetodonoides) swimming above a coral reef, Uepi Island, Solomon Islands.

Fred Olivier / Harlequin sweetlips (Plectorhinchus chaetodonoides) swimming above a coral reef, Uepi Island, Solomon Islands.

Georgette Douwma / Goldenlined sweetlips (Plectorhinchus chrysotaenia) Triton Bay, West Papua, Indonesia.

Alex Mustard / Oriental sweetlips (Plectorhinchus vittatus) schooling above coral reef. Lankan Island, North Male Atoll, Maldives. Indian Ocean.

Alex Mustard / RF - Oriental sweetlips (Plectorhinchus vittatus)l and Redtail butterflyfish (Chaetodon collare) schools in coral reef. Lankan Island, North Male Atoll, Maldives. Indian Ocean. (This image may be lice...

Linda Pitkin / Ribbon sweetlips (Plectorhinchus polytaenia) swimming over Black coral (Antipathes sp.), Triton Bay, near Kaimana, West Papua, Indonesia

Linda Pitkin / Ribbon sweetlips (Plectorhinchus polytaenia), Triton Bay, near Kaimana, West Papua, Indonesia

Linda Pitkin / Ribbon sweetlips (Plectorhinchus polytaenia), Triton Bay, near Kaimana, West Papua, Indonesia

Bert Willaert / Oriental sweetlips (Plectorhinchus vittatus) and Harlequin sweetlips (Plectorhinchus chaetodonoides), Bismarck Sea, Vitu Islands, West New Britain, Papua New Guinea

Franco Banfi / Many-spotted sweetlips (Plectorhinchus chaetodonoides) Tubbataha Reef Natural Park, UNESCO World Heritage Site, Sulu Sea, Cagayancillo, Palawan, Philippines

Franco Banfi / Shoal of Many-spotted sweetlips (Plectorhinchus chaetodonoides) on a cleaning station, Tubbataha Reef Natural Park, UNESCO World Heritage Site, Sulu Sea, Cagayancillo, Palawan, Philippines

Franco Banfi / Oblique-banded sweetlips (Plectorhinchus lineatus) Tubbataha Reef Natural Park, UNESCO World Heritage Site, Sulu Sea, Cagayancillo, Palawan, Philippines

Georgette Douwma / Yellow striped sweetlips / Goldlined sweetlips (Plectorhinchus chrysotaenia), West Papua, Indonesia.

Georgette Douwma / Ribbon sweetlips (Plectorhinchus polytaenia) and Black coral (Antipathes dichotoma), West Papua, Indonesia.

Georgette Douwma / Yellow striped sweetlips / Goldlined sweetlips (Plectorhincus chrysotaenia), West Papua, Indonesia.

Linda Pitkin / Mixed school of Ribbon Sweetlips (Plectorhinchus polytaenia), and Diagonal-banded Sweetlips (Plectorhinchus lineatus) Arborek, Dampier Strait, Raja Ampat, West Papua, Indonesia, March 2016

Linda Pitkin / Mixed school of Ribbon Sweetlips (Plectorhinchus polytaenia), and Diagonal-banded Sweetlips (Plectorhinchus lineatus) Arborek, Dampier Strait, Raja Ampat, West Papua, Indonesia, March 2016

Brandon Cole / Diagonal-banded Sweetlips (Plectorhinchus lineatus) Great Barrier Reef, Australia, Pacific Ocean.

Brandon Cole / Diagonal-banded Sweetlips (Plectorhinchus lineatus) Great Barrier Reef, Australia, Pacific Ocean.

Brandon Cole / Diagonal-banded Sweetlips (Plectorhinchus lineatus) large shoal, Great Barrier Reef, Australia, Pacific Ocean.

Alex Mustard / RF - Bluestreak cleaner wrasse (Labroides dimidiatus) tending to Ribboned sweetlips (Plectorhinchus polytaenia). Yillet Kecil, Yillet Islands, Misool, Raja Ampat, West Papua, Indonesia. Tropical West...

Georgette Douwma / Ribbon sweetlips (Plectorhinchus polytaenia) on cleaning station in (Turbinaria sp) coral, Raja Ampat, West Papua, Indonesia.

Alex Mustard / Long exposure of a juvenile Harlequin sweetlips (Plectorhinchus chaetodonoides), which dance as a defence from predators. The dance may mimic the movements of poisonous flatworms or may simply confuse...

Pascal Kobeh / Blackspotted sweetlips (Plectorhinchus gaterinus) cleaned by a common cleanerfish (Labroides dimidiatus) Madagascar, Indian Ocean.

Constantinos Petrinos / Ribboned sweetlips (Plectorhinchus polytaenia) juvenile on soft coral. Lembeh Strait, North Sulawesi, Indonesia.

Pascal Kobeh / Two Bluestreak cleaner wrasses (Labroides dimidiatus) cleaning, Oblique / diagonal banded sweetlips (Plectorhinchus lineatus) New Caledonia. Pacific Ocean.

Pascal Kobeh / Two Bluestreak cleaner wrasses (Labroides dimidiatus) cleaning, Oblique / diagonal banded sweetlips (Plectorhinchus lineatus) New Caledonia. Pacific Ocean.

Pascal Kobeh / Bluestreak cleaner wrasse (Labroides dimidiatus) just swimming out of mouth of Oblique / Diagonal banded sweetlips (Plectorhinchus lineatus) whilst cleaning / feeding, New Caledonia. Pacific Ocean.

Pascal Kobeh / Bluestreak cleaner wrasse (Labroides dimidiatus) just swimming out of mouth of Oblique / Diagonal banded sweetlips (Plectorhinchus lineatus) whilst cleaning / feeding, New Caledonia. Pacific Ocean.

Pascal Kobeh / Bluestreak cleaner wrasse (Labroides dimidiatus) cleaning Diagonal banded sweetlips (Plectorhinchus lineatus) New Caledonia. Pacific Ocean.

Pascal Kobeh / Bluestreak cleaner wrasse (Labroides dimidiatus) just swimming out of mouth of Oblique / Diagonal banded sweetlips (Plectorhinchus lineatus) whilst cleaning / feeding, New Caledonia. Pacific Ocean.

Pascal Kobeh / Bluestreak cleaner wrasse (Labroides dimidiatus) just swimming out of mouth of Oblique / Diagonal banded sweetlips (Plectorhinchus lineatus) whilst cleaning / feeding, New Caledonia. Pacific Ocean.

Pascal Kobeh / Oriental sweetlips (Plectorhinchus orientalis) Mayotte. Indian Ocean.

Pascal Kobeh / Oriental sweetlips (Plectorhinchus orientalis) with a diver, Mayotte. Indian Ocean. February 2010.

Pascal Kobeh / Hard corals (Turbinaria reniformis) and Soft corals (Scleronephthya ) with Giant squirrelfish (Sargocentron spiniferum) and Oriental sweetlips (Plectorhinchus vittatus) Palau. Philippine Sea.

Pascal Kobeh / Diagonal-banded / Yellowbanded sweetlips (Plectorhinchus lineatus) cleaning Spotted unicornfish (Naso brevirostris) Palau. Philippine Sea.

Pascal Kobeh / School of Oriental sweetlips (Plectorhinchus orientalis) at a cleaning station, Maldives. Indian Ocean.

Pascal Kobeh / School of Oriental sweetlips (Plectorhinchus orientalis) at a cleaning station, Maldives. Indian Ocean.

Pascal Kobeh / Two Giant morays (Gymnothorax javanicus) coming out of their burrows on coral reef, with Oriental sweetlips (Plectorhinchus orientalis) on background, Maldives. Indian Ocean.