What is the name of the symbiotic algae that live inside coral tissue and provide them with nutrients?

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Zooxanthellae are microscopic dinoflagellates that live within coral tissue, providing up to 90% of the coral's energy through photosynthesis. When water temperatures rise too high, coral expels these algae in a process known as bleaching. Understanding this relationship is fundamental for anyone maintaining a reef aquarium (Deals) at home.

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