Yeah, that's a little better pic. Well, it's certainly not a sebae. Though it has bulbous tentacles, I'm not sure it's a bubble tentacle anemone (BTA) either. I'm not sure what species it is. You might want to re-post that pic under a new thread entitled "anemone id?"
Also, is there any chance you can get a column pic. Looks like it's attached to the rock, so probably not an option. However, that can help in making an accurate id.