I have some anthelia in my tank that started as just one stalk and is now like 50 in a couple months. I am now considering pulling it all off the rock due to it is one of my nice base rocks that has other exceptional pieces sitting on it. I did not think it would grow that fast. I like the way it moves in the current but, ****...Is it xenia or anthelia? If its xenia on a stalk you should be ok. just peal the stalk off and move it . if it is anthela it will take over your bam bams and choak them from the light. id wirebrush the anthelia off before it reaches the bam bams.