The seaweed moved in an unnatural way and then I realized I was looking at a decorator crab!

I just got back from a dive trip in North Sulawesi Indonesia and we got to see all kinds of crazy creatures, especially on the muck dives. At one point we saw a decorator crab and I never thought I would see one off the coast of Florida. But I did today! There was a bit of surge on the bottom so things were swaying back and forth. But then I saw something move in an unusual way so I started to follow it and that is when I realized what I was looking at, a decorator crab!