Orange Cup Coral - Tubastraea coccinea
The Orange Cup Coral - Tubastraea coccinea are usually seen at late afternoon and at night with its polyps opened up to feed. When not feeding, the polyps (soft parts) are retracted, and what is seen is the hard skeleton part of the corals.
Orange cup coral belongs to a group of corals known as large-polyp stony corals. This non-reef building coral extends beautiful translucent tentacles at night, which gives the species its nickname, the sun coral. ''Tubastraea coccinea'' is heterotrophic and does not contain zooxanthellae in its tissues as most corals do.