star polyps

[sumpfinfishe]

Greg,
GSP's as well as Gorgonians do this from time to time and it is perfectly normal. Encrusting or matting polyps and corals do this as a means of house cleaning, they close up for a week or two in order to shed a new layer of film off there mat's or to simply flush away debris that has accumalated over time. I wouldn't worry for now, when I use to keep GSP they would do this every 3-4 months in my tank. All three types of my branching gorgonians that are 8yrs old do this every few months for usually 3-4 days, with GSP this cleaning period is usually longer.