Originally Posted by fender
Place it on an island. That is how I am keeping GSP and Xenia under control. Attach frags to rocks that aren't touching other rocks isolated on the sand bed. I am in the process of testing this. Anyone else gone this route?
I have some xenia (Anthelia Sp.) that I am fragging this way, but using cc instead of sand as the substrate. As soon as it starts to grow over, I just make my cut and glue it to a plug.