I rescued a fish from a tank tear down and ended up coming home with a few corals that were buried in hair algae. I peroxide dipped them and put them in a observation tank I have. The algae went away. Here are the 5 plugs that had zoanthids on them. My question is what might that polyp be on the one plug. I know they are terrible pictures, but I just noticed it today. If its a zoa, I have not seen one like that. Take a look and see what you think. Its circled in red and a super blurry enlarge. I'd love to hear thoughts. What is it.