David Fleetham / White-tail chromis (Chromis leucura) swimming amongst shoal of Indo-Pacific sergeant fish (Abudefduf vaigiensis) and Blotcheye soldierfish (Myripristis berndti), Hawaii, Pacific Ocean.

David Fleetham / Indo-Pacific sergeant fish (Abudefduf vaigiensis), male, tending to dark purple egg mass deposited underneath him, Hawaii, Pacific Ocean.

David Fleetham / Indo-Pacific sergeant major (Abudefduf vaigiensis) portrait, Hawaii, Pacific Ocean.

David Fleetham / Three male Indo-Pacific sergeant major fish (Abudefduf vaigiensis) tending to their purple egg masses, Hawaii.

David Fleetham / Indo-Pacific sergeant major (Abudefduf vaigiensis) pair tending egg mass in coral reef, Shoulderbar soldierfish (Myripristis kuntee) in background. Pacific Ocean, Hawaii.

Magnus Lundgren / Wild Wonders of China / Plastic waste in the ocean along with Indo-Pacific sergeant (Abudefduf vaigiensis) Green Island, a small volcanic island in the Pacific Ocean, Taiwan

Magnus Lundgren / Wild Wonders of China / Plastic waste in the ocean with Indo-Pacific sergeant (Abudefduf vaigiensis) Green Island, a small volcanic island in the Pacific Ocean, Taiwan.

Alex Mustard / Indo-pacific sergeant (Abudefduf vaigiensis) eggs hatching at dusk. Arborek Island, Raja Ampat, West Papua, Indonesia. Dampier Strait, Tropical West Pacific Ocean.

Willem Kolvoort / Sergeant major fish (Abudefduf vaigiensis) swimming over various coral species in the main channel, Aldabra, Indian Ocean

Willem Kolvoort / Sergeant major fish (Abudefduf vaigiensis) swimming over various coral species in the main channel, Aldabra, Indian Ocean