I read a thread by MudplayerX on fragging xenias....it is very simple and worked very well for me...cut the stalks about a half inch above the rock....get some small live rock rubble. take a piece of rock put the xenia on it and put a piece of netting around it...not too small of netting, and not too big. I used the net that you get when you get a bag of onions at the grocery store....after putting the net around the xenia and the rock put a rubberband on it to hold the netting closed. and place them back in the tank. mine attached from between 1 and 3 days, then i took the net off, set them back in the fuge, and they went to growing. the half inch stump in your tank will grow new heads on it.. i guess if you wanted to get rid of it..just scrape the stump off the rock.