upon close inspection that gorg appears to be a briareum, not a true gorg right? (can't recall that specific tax. identity) if that's the case, it should be much like green star polyps care because it has overgrown the orignal gorgonian colony... can't get a close detail focus with the pics...
hows this setup coming along? And that Halimeda in the lower right corner, hope it growns well for you because it is a nice calcareous algae. Pretty when matured and filled-out. I never fared well with it, but know people who harvest it and throw it out of refugiums! Much like xenia, some grow it and harvest it and some wish they could keep a single stalk from shriveling up!