Over the weekend I happened to notice that the flesh polyps of this coral were pretty retracted and stiff. They were so stiff they weren't swaying in the current at all. All of the polyps were green instead of brown. Then, all at once, the flesh seemed to expand and all of a sudden the coral moved. It didn't move much. Just a millimeter or two. But it did move. Then, the coral turned brown again and the polyps slowly fully expanded. I'd like to know if anyone else has ever seen this.
