I was wondering, my tank is quite old and has had its issues over the last three years. There's these brown star polyps that weave in an out of my live rock and its been noted that a sea star or two might help in thinning this out. My tank has had a tragedy, too. My AC went out when I was gone and for over a day it reached 90. Lost many LPS, so now I have less to worry about concerning the stars. Any thoughts out there and what kind of star would do the job?