Thanks for the responses. Up until a couple days ago I was certain they were Majanos, but then suddenly they developed more of a Palythoa appearance. With a new bulb (14K) their colors also became more vibrant, to the point I really like the way they look now. We do have other Palythoa around the tank as well as Zoanthids, and their appearance is really quite similar. So I guess for now they will stay. I hope I don't regret this in the long run.
Thanks, Drew