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Unknown species of damselfish?

Possibly a species of damselfish (perhaps juveniles) spotted at Aow Leuk, Koh Tao.

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Alexander's Damselfish (Pomacentrus Alexanderae)

An Alexander's Damselfish (Pomacentrus Alexanderae) at Aow Leuk, Koh Tao.

The main distinguishing features are visible in this shot, namely: the large black spot at the base of the pectoral fin and the black-tipped dorsal rays, although these are less clear.

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Pink Anemonefish (Amphiprion Perideraion)

A Pink Anemonefish (Amphiprion Perideraion) resting within a Magnificent Anemone (Heteractis Magnifica), with which it shares a symbiotic relationship.

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ascent

PADI Open Water and Advanced Open Water student, Jaksa Dubljanin from Serbia.

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Student navigating