David Fleetham / Saddleback clownfish / Yellowfin anemonefish (Amphiprion polymnus), female, breeding male and non-breeding males with host Leathery anemone (Heteractis crispa). Philippines.

Pascal Kobeh / Oman anemonefish / clownfish (Amphiprion omanensis) in Leathery sea anemone (Heteractis crispa), coast of Dhofar and Hallaniyat islands, Oman. Arabian Sea.

Pascal Kobeh / Oman anemonefish / clownfish (Amphiprion omanensis) in a Leathery sea anemone (Heteractis crispa) near a hard coral (Porites) with Variable-lined fusiliers (Caesio varilineata) and a diver in the back...

Chris Newbert / Leathery Sea Anemone (Heteractis crispa) detail, Coral Sea

Alex Mustard / Banggai cardinalfish (Pterapogon kauderni) juvenile, swimming over a Sea anemone (Heteractis crispa) on a coral reef, Bitung, North Sulawesi, Lembeh Strait, Molucca Sea.

Sirachai Arunrugstichai / Close up details of the tentacles of a Sebae anemone (Heteractis crispa), Lembeh Strait, North Sulawesi, Indonesia.

Sirachai Arunrugstichai / Pink skunk clownfish (Amphiprion aperideraion) hiding among tentacles of a Sebae anemone (Heteractis crispa), where these two species have a symbiotic relationship, Lembeh Strait, North Sulawesi, Indo...

Frederique Olivier / Sebae anemone (Heteractis crispa) feeding, arms moving in current, Nusatupe Lagoon, Solomon Islands.

Frederique Olivier / Clarks?s anemone fish (Amphiprion clarkii) swimming around a Sebae anemone (Heteractis crispa), Nusatupe Lagoon, Solomon Islands.

Frederique Olivier / Clarks?s anemone fish (Amphiprion clarkii) swimming around a Sebae anemone (Heteractis crispa), Nusatupe Lagoon, Solomon Islands.

Frederique Olivier / Clarks?s anemone fish (Amphiprion clarkii) swimming around a Sebae anemone (Heteractis crispa), Nusatupe Lagoon, Solomon Islands.