dont remember where i read it but it works like a charm. as you know xenia can be a little tricky because it deflates when cut. anyway, got this decorative ribbon netting, sortof like the material that makes a wedding veil. i cut the xenia and place it on a piece of rubble then wrap the netting up and place it in the tank. a day or 2 later unwrap it and voila! so easy. maybe ya'll knew this technique already but if not it is a real time saver