Bubble Corals

Bubble Corals have large water filled bubbles (vesicles) typically about the size and shape of grapes. While typically smooth, the vesicles can also look asymmetrical especially when they are only partially inflated.  The color can range from white, to cream, to shades of gray or green and is semi-translucent.  The vesicles cover a skeleton which has large sharp sepia protruding upwards.  The bubbles are inflated during the day and deflate at night.  When deflated, the feeding tentacles and mouth become apparent and the sepia can be observed under the flesh of the coral. 

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