Dec 21, 2016 #1 joejenn Community Member View Badges Joined Aug 23, 2015 Messages 90 Reaction score 19 Location North Carolina Rating - 0% 0 0 0 Looks like some kind of leaf that's growing out of my star polyp. There is a few of them.
Dec 21, 2016 #2 K kashman100 Well-Known Member View Badges Joined Jun 19, 2016 Messages 589 Reaction score 330 Rating - 0% 0 0 0 Possibly sawblade caulerpa. Can you get a clearer pic?
Dec 21, 2016 #3 ahiggins 2500 Club Member View Badges Joined Apr 13, 2016 Messages 4,827 Reaction score 3,397 Rating - 0% 0 0 0 I agree its an algae and not a critter.