Close up of a bubble coral. The polyps of this…

Close up of a bubble coral. The polyps of this coral inflate during the day and deflate at night when the coral puts out tentacles to capture food. #elnido #palawan #scuba #diving #amazing #underwater #world #ocean #bubbles #coral #closeup #macro #photography #instagood #instalike #fun #facts #explore #discover #experience #nature #photooftheday #itsmorefuninthephilippines (at Palawan Divers – El Nido)