Also known as Button Coral, Musical Coral, Pipe Organ Coral, Red Coral, Red Organ Pipe Coral.
Found in colonies composed of thin tubes "organ pipes" 0.2 cm diameter, cemented together by horizontal plates at intervals of several centimetres. In life, the corals have white polyps that may cover the corallum. The skeleton is deep red. Over mid-shelf reefs and reef flats.
They feed on plankton.
Length - 50cm
Depth - 3-400m
Widespread Indian Ocean, Pacific Ocean
Most soft corals have no true skeleton and so their bodies are flexible.
Some soft corals have spikes very similar to rose thorns which may help to protect against predators.
Soft corals are food and shelter to many marine animals, some of which hide in the branches and take on the colouration of these corals. Ref: https://en.wikipedia.org/wiki/Organ_pipe_coral