Chocolate chip stars

[Delphinus]

How big of a polyp can they be a risk to? I imagine small corallimorphs will be chocolate chip food, but can they pose a risk to larger monstrosity-sized polyps/mushrooms? For example, how about a plague of 4"-6" sized purple mushrooms that are pretty much devastating what used to be a nice reef tank?

[Bob I]

I am thinking of a plague of much smaller proportions called Green Star Polyps. Would one of those guys eat those? They are now growing in small patches on my rocks and glass.

[Canadian Man]

Tony,
For the time that I had my Chocolate chip star is did nothing but clean the sand bed. After a few months it then started on the corals...well only the yellow polyps. It wouldnt touch anything else. It might have though if I would have let it eat all my yellow polyps.