What would I see?

In a coral reef the most obvious thing you would find is coral. There are many different types of coral. Corals get their vibrant colors from the algae they host. Coral reefs are one of the most beautiful sights in the universe. Every color you can imagine. From blues, pinks, reds, yellows, greens, oranges, and all the purples in the world. All coming from different types of coral. How many different types and colors can you think of? There's a lot.