Star polyp ?

[fishog]

I have two colinies of star polyps about the size of a 50 cent piece on the right side of my tank that have not opened in the last three days they are about six inches from each other and they have been open and spreading for the last 3 months . there are two colinies on the left side of the tank that were fraged from the same mother coliny that are open and looking fine . My fish and other corals are doing fine . Mushrooms ,frogspawn ,torch , zoes . None of these corals are close to the stars that have decided to disapear . I will test water when I get home but cant believe this is a problem when every thing else looks fine . Any Ideas ? Thanks

 

[crvz]

sometimes star polyps just close up like that for long periods of time. I'd start worrying after a couple weeks, but just a number of days isnt too incredible.