Clownfish
I learned that clown fish in pairs are usually guarding this coral anemone species. Or the other way round as they hide among its tentacles, which are protective. I found out the fish are protectors because most of the fish swam away from me. But these little guys swam toward my mask. I actually had to back away in order to focus. They come in pairs. And when you wave your hand over the anemones, the tentacles spread to show a brilliant color beneath.
photobackstory 