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...

Georgette Douwma / Many spotted sweetlips (Plectorhinchus chaetodonoides). Celebes Sea, Indo Pacific

David Fleetham / Two adult bluestreak cleaner wrasse (Labroides dimidiatus) searching a clown sweetlips (Plectorhinchus chaetodonoides) for parasites, Indonesia.

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

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...

Alex Mustard / Harlequin sweetlips (Plectorhinchus chaetodonoides) with cleaning Bluestreak cleaner wrasse (Labroides dimidiatus) and Bicolour cleaner wrasse (Labroides bicolor) South Atoll, Tubbataha Atolls, Tubbat...

Juergen Freund / Many spotted sweetlips (Plectorhinchus chaetodonoides) and other fish under table coral on a healthy coral reef, Komodo NP, Indonesia, Indo-pacific.

Juergen Freund / Juvenile Harlequin / Many spotted sweetlips (Plectorhinchus chaetodonoides) swimming by undulating its body sideways imitating a flatworm. Lembeh Strait, North Sulawesi, Indonesia.

Juergen Freund / Juvenile Harlequin / Many spotted sweetlips (Plectorhinchus chaetodonoides) swiming by undulating its body sideways, imitating a flatworm. Lembeh Strait, North Sulawesi, Indonesia.

Michele Westmorland / Many spotted sweetlips ( Plectorhinchus chaetodontoides) hiding in colorful coral reef, Paul's Reef, Tufi, Oro Province, Papua New Guinea

Michael Pitts / Many spotted / Harlequin sweetlips {Plectorhynchus chaetodonoides} Palau, Micronesia, Pacific