Apastia? ID Help Please!!

If it is, what is the fastest method I can get rid of it? I can get to a petsmart, petco, and LFS. Order of material and equipment will take at least a week. I can easily remove the rock and scrub it off.

Will spores(?) be throughout the tank already?

Thanks!!!
 
The first two pics are definitely Aiptasia. The last ones aren't. Is there any way to get a closer/clearer look at them? Judging by the stalk they look like clavulariid polyps, but I can't tell for sure without a better pic.
 
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