I just got the star polyp. and I recommend it as well

very hardy, people often have to trim them back
and they some times host
YouTube - Green Star Polyps hosting Tomato Clownfish
here is a vid contaning the star polyp and my fav. Pulsating Xenia
Groups of these stalks form Xenia colonies that can spread into large mats.
YouTube - xenia and green star polyps
good advice above