So this has been happening lately.
A little closer view shows the duncan's tentacles attached to the green slimer acro.
I broke off the tip of the green slimer and thought I was done with it. Came home yesterday to the entire bottom of that green slimer branch engulfed with Duncan tentcles. Didn't snap a pic, was in a hurry. But, today I will need to brake off the entire branch.
You can see the dead area on the green slimer's branch on the pic below. The underside in two areas are dead.
Coral competition for space is happening in my tank. Duncan 1: green slimer 0.
Remember this happening (top of previous page), the Duncan took out the green slimmer, if you would believe it! I had to chop back the slimmer as the dead parts kept expanding and the duncans kept reaching for the coral. So sad. But, the slimmer will come back in time.