Palythoa.
I am not a marine biologist or a scientist by any means, but I believe the largest polyps in the center of the first picture are palythoas, and they are the primary reason I am tearing down my 280. In my tank the polyps that look like that have grown rapidly, migrated to every corner, and are out competing every other zoa and acro I own. Not that I want to be a spoil-sport, and like I said I'm not a marine biologist so my i.d. could be wrong, but just keep an eye on the lil' buggers :Up_to_som
The other zoa's are gorgeous by the way. Nice collection!
Joe