Looks like Zoanthid-eating NudibranchFound this guy on my zoa's and is making them stay closed. I believe it to be a nudibranch. Not sure cause this is the first time I see him.
How do I get him out. What kind of fish hunts him?
What kind of fish hunts him?
It is in fact a nudibranch and it will eat all your zoanthids if you don't get rid of them. Yes THEM because they are never alone and they lay eggs in the shape of a curl on the zoas. Dipping in Lugol's iodine will kill them but not the eggs so you will have to dip them for some weeks to kill whatever eggs hatch.