Stony Corals (Euphylliidae)
Elegant Coral and Wonder Coral
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Also known as Elegant Coral and Wonder Coral.
Found on sand and rubble bottoms, with their skeletons buried and just their tentacles showing. Often mistake for Sea Anemones
Colour usually green with a stripy look and deep valleys, sometimes different shapes.
They feed on plankton.
Length - ?
Depth - 0-40m
Widespread Indo-West Pacific
Stony corals have hard stony skeletons, their polyps have six tentacles or are made up of multiples of six. These are usually nocturnal, however if the sky's are overcast, then many will feed during the day.
Generally the more robust corals life on exposed areas, while the smaller corals live in sheltered lagoons or deeper waters.
Stony corals are reef building corals and embedded in their flesh are thousands of minute single-celled marine plants called zooxanthellae which accounts for their colour.
These corals support a huge diversity of life, their main predator being the crown-of-thorns sea star. (edit)
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