Please ID this coral/pest
 

It came on a frag plug and six months later it's invaded 50% of my rocks. Any idea what it is and how I can eradicate it, are there any fish or invert that would consumer these polyps?

Attachment 16046

Ive had some of these also, following.

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They look like red clove polyps instead of the usual blue ones. I hope someone else can more accurately id them

AquaAddict

What's the big stalk in the photograph?

Don't think They're a type of clove, I hear they might be a type of gorgonian? They spread faster than gsp and grow out like clove polyps.