Hi all, I noticed this on one of my zoas today. This was the 2nd one that I put in the tank and it was dipped when I got it never saw anything on it before. These things are tiny as you can see from the zoa polyp. There is no detectable body to them that I can find. I made the zoa close up and nothing can be seen, but the tentacles of whatever do retract somewhere. This zoa is already half on and half off the plug so I can't get it out of the tank to do a close inspection.
So if this is indeed aptasia I will be getting a nudibranch ASAP, but I don't want to starve it if this isn't what they are. Any help appreciated!

So if this is indeed aptasia I will be getting a nudibranch ASAP, but I don't want to starve it if this isn't what they are. Any help appreciated!

