David Fleetham / Three spot damselfish (Dascyllus trimaculatus) with Sea anemone home, Yap, Micronesia.

Linda Pitkin / Magnificent sea anemones (Heteractis magnifica) with Three-spot dascyllus / Dominos (Dascyllus trimaculatus), and Two-banded anemonefish (Amphiprion bicinctus) Anemone City, Ras Mohammed National Park...

Constantinos Petrinos / Domino damsel (Dascyllus trimaculatus) by its host sea anemone (Heteractis magnifica). Lembeh Strait, North Sulawesi, Indonesia.

Georgette Douwma / Three-spot damsel (Dascyllus trimaculatus) trying an empty bivalve for nesting site. Egypt, Red Sea.

Georgette Douwma / Three-spot damsel (Dascyllus trimaculatus) guarding eggs. Egypt, Red Sea.

Pascal Kobeh / Masked porcupinefish (Diodon liturosus) and a Threespot dascyllus / damselfish (Dascyllus trimaculatus), Daymaniyat islands, Oman. Gulf of Oman.

Alex Mustard / Portrait of Domino damselfish (Dascyllus trimaculatus) over coral head (Acropora lamarkii) Ras Katy, Sinai, Egypt. Gulf of Aqaba, Red Sea.

Alex Mustard / Portrait of Domino damselfish (Dascyllus trimaculatus) against open water. Egypt. Red Sea.

Alex Mustard / Spawning pair of Domino damselfish (Dascyllus trimaculatus) The female is in front, the male is behind and his head has gone almost white during the spawning. He will guard the eggs until they hatch....

Alex Mustard / Spawning pair of Domino damselfish (Dascyllus trimaculatus) The female is in the foreground, her ovipositor clearly visible. The male is behind with head almost white during the spawning. He will guar...

Claudio Contreras / Three-spot Dascyllus Fish (Dascyllus trimaculatus), swimming near sea anemone. Pandanon Island, Danajon Bank, Central Visayas, Philippines, April

Claudio Contreras / Three-spot Dascyllus Fish (Dascyllus trimaculatus), Pandanon Island, Danajon Bank, Central Visayas, Philippines, April