Zooming in, looks like an aiptasia anemone. You'll want to nuke it as soon as possible.. Joe's juice, peppermint shrimp, kalk powder slurry, boiling water injection..
I haven't seen one in the metroplex selling camel shrimp as peppermints.. luckily, though, I think Robert (fish2morrow) may have some that he could sell ya dirt cheap. PM him and see if he has any left.
