The definition of weeds is anything that you don't want in your garden. To each his own. A saltwater tank in the nail salon I go to if full of aphasia, that's it
Yea, I've seen a few tanks here recently and that coral (didn't know the name until now) was out of control. I thought - boy I'm glad I never liked that when I started.... Anything that can grow across the sand is one tough coral. Gook luck with that.
Do you not want other corals/clams on your sandbed? Andy, Ummmfish, has a sweet growth going on. You can find his journey in the MBI portion of this site.