Have you added Lugols Iodine? It will shrink/kill xenia. As far as I know other Iodine's are okay.?? Not sure but I tried the Lugols and it was an immediate reaction.
__________________
Red Coral Online Store 
www.redcoralaquarium.net
45 Gallon Cube with 10 Gallon Sump, Lighting 8 bulb T5, Vertex IN 80 Skimmer
-2 Occelaris Clowns, Engineer Goby, RBTA, Peppermint Shrimp
|