Corals
The architects of the underwater world — hard corals build the reef, soft corals sway in the current. Take your time and look closely: the polyps feeding at night or in current are one of diving's quiet spectacles.
Last updated April 2026
Soft coral1 photos
Branching or tree-like colonies of soft, flexible polyps that sway in the current. Comes in many colors — white, pink, yellow, red — without a hard skeleton.
Found on walls and overhangs in current-swept areas, polyps extend to feed — look closely to find tiny shrimp and nudibranchs living among the branches.
© Jouni Kuisma
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