Also known as Anemone Coral, Branching Flower Pot Coral, Daisy Coral, Diurnal Coral, Flower Coral, Starburst Flowerpot Coral, Sunflower Coral.
Found on coral and rocky reefs, may cover large areas. Pale, dark brown or green, polyps have large oral cones which are white or blue. (which may photograph pink)
They feed on plankton.
Length - Spreading
Depth - 1-20m
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. Ref: http://www.coralsoftheworld.org/species_factsheets/species_factsheet_summary/goniopora-djiboutiensis/