During a night dive I was taking pictures of this Black Sun Coral (Tubastrea micrantha), as the polyps had their fleshy tentacles opened. Suddenly, a plankton-like organism passed by and got stuck in the tentacles of one of the polyps. Inmediately, it secured its prey, closing the tentacles around the organism, and withdrawing back inside the tubular corallite structure. An extremely rare opportunity to see a black coral feeding on living plankton!
Raja Ampat, West Papua, Indonesia.