Nuisance softie predator?

[KenRexford]

So, for Aiptasia, we have beghias and the filefish that love to eat Aiptasia but generally stick to Aiptasia.

Question: Are there parallels for other soft Cnidaria?

For example, a great tank addition might be a nudibranch that eats only pulsating Xenia. Or, a filefish that loves green star polyps but nothing else. Big money would be available for the Dino-devouring Wrasse, no matter how ugly.

 

[T-J]

There are some fish that may pick at or eat Xenia, but nothing like a nudi that ONLY eats a specific thing (like Aiptasia).