Damselfish
Pomacentridae
Feisty little reef residents, from the iconic clownfish sheltering in anemones to Mediterranean damselfish guarding their algae patches. Don't be surprised if a tiny one charges your mask — they're famously territorial.
Last updated April 2026
Species
Clownfish
Amphiprion bicinctus(20 photos)The iconic Red Sea two-band anemonefish — bright orange-yellow with two white bars outlined in black. Smaller and feistier than its Pacific relatives.
Aggressively guards its host anemone, darting at divers' masks and cameras — surprisingly bold for its size.

© Jouni Kuisma

© Jouni Kuisma

© Jouni Kuisma

© Jouni Kuisma

© Jouni Kuisma

© Jouni Kuisma

© Jouni Kuisma

© Jouni Kuisma

© Jouni Kuisma

© Jouni Kuisma

© Jouni Kuisma

© Jouni Kuisma

© Jouni Kuisma

© Jouni Kuisma

© Jouni Kuisma

© Jouni Kuisma
Mediterranean chromis
Chromis chromis(8 photos)A small, uniformly dark brown to black fish with a slightly forked tail. The most abundant fish on Mediterranean rocky reefs — impossible to miss.
Forms dense clouds above rocky reefs, feeding on plankton in mid-water — juveniles are electric blue and much easier to spot.

© Jouni Kuisma

© Jouni Kuisma

© Jouni Kuisma

© Jouni Kuisma

© Jouni Kuisma

© Jouni Kuisma

© Jouni Kuisma

© Jouni Kuisma
Observed at
Canary damselfish
Abudefduf luridus(2 photos)A stocky, dark damselfish with a blunt head, found in Canary Islands and Macaronesian waters. Dusky grey-brown body, sometimes with faint vertical bars.
Territorial on rocky reefs, often seen chasing other fish away from its algae patch.

© Jouni Kuisma

© Jouni Kuisma
Observed at
Half-and-half chromis
Chromis dimidiata(1 photos)Recognize it by the sharp color split — dark brown upper body and bright white lower half. A common Red Sea damselfish found near branching corals.
Hovers in small groups just above coral heads, retreating into branches when threatened.

© Jouni Kuisma
Observed at
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