Lesser Knob Coral
| Scientific Name: | Cyphastrea serailia |
| Species: | Stony Corals (Faviidae) |
| Other names: |
Brain Corals and Pillow Corals |
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Lesser Knob CoralUploaded by: @fishx6 in July 2009
Photographed at: Challenger Bay - Great Barrier Reef - Australia
Caption: No caption available
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Description
Also known as Brain Corals and Pillow Corals.
Found over a wide range of reef habitats, this is one of the most common stony corals.
Colonies are massive to smaller column shapes with a smooth or hillocky surface.
Tentacles only extended at night.
Colours vary from cream, brown and grey.
They feed on plankton.
Length - ?
Depth - ?
Widespread Indo-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.
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Fishy Stats
Length: ?
Depth: ?
Found: Indo-Pacific
Eats: Plankton
Family: Stony Corals
Species: Faviidae
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