These are both Highhat drums. The bigger one (with the trailing dorsal) is smaller than a dime. The one in the bottom corner is much smaller. Almost all reef fish spend the first part of their lives as tiny fish larvae drifting in the ocean. When they reach a certain size they settle at a reef. Drums are among the smallest fish to settle on our reefs. Like many juvenile Drums this little guy found shelter at a Giant Anemone. I wish I had a picture of the an adult Highhat, they look very different.

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