Oh no, we would never get rid of it. We are just trying to ID it to make sure we are taking care of it. The rather geometric shape of it is what is interesting.I Snorkel in the Florida Keys and I can't say I've ever seen anything just like that. However, there are a lot of different tunicates and they vary wildly in shape, size, color and form. But many of them do tend to be hollow and puffy.
If it were in my tank I'd leave it for now and keep an eye on it. But then I enjoy seeing unusual things in my tank.
If I had a lot of very expensive corals, I might be inclined to pull the rock out or cover the organism with kalk paste (like killing an aiptasia). Just because I wouldn't want to risk the expensive corals.
Good luck and I'll follow along.
I'm not surprised. I've picked up a couple of things in the Keys that my wife and I as well as people here ID'd as tunicates. But we never found them even after extensive searches.Well in the process of looking for it, I did ID other things I have. I have been through 30 minutes of pictures of tunicates and cannot find this exact one.