FamilyCaryophylliidaeAlso known asgrape coral, pearl coral, bladder coralDescriptionBubble coral is named for its distinctive grape-like vesicles (pseudotentacles) which inflate during the day to maximize light capture for its symbiotic zooxanthellae. The vesicles are translucent to pale green or white, with a wrinkled surface texture visible upon close inspection. At night, the bubbles deflate and long sweeper tentacles emerge to capture zooplankton.HabitatFound on reef slopes, walls, and shaded overhangs at depths of 5–40 m throughout the Indo-Pacific, Red Sea, and East Africa. Prefers moderate to low light environments.Conservation statusLeast ConcernNotesClose-up macro image showing the characteristic bubble-like vesicles of what appears to be Plerogyra sinuosa. A blurred pink/dark object occupies the right side of the frame (possibly a diver's finger or fin). Larger whitish anemone or coral tentacles visible in the background upper portion. Confidence is medium rather than high because other Plerogyra species can look similar at this scale.Creatures detected5 in frame- bubble coral vesiclescoral
- large anemone or soft coral tentaclesinvertebrate
- encrusting pink/purple organism (bryozoan or tunicate)invertebrate
- filamentous algaeplant_algae
- crustose coralline algaeplant_algae
