LF Xenia eating Nudibranch (Or what have you)

[sbcam]

Hi all, looking for anything that attacks and kills Xenia. I have heard that SOME Nudibranch will eat Xenia like a lawn mower... so if you have one that loves the stuff I sure would likme to get my hands on it. Either that or I will have to take apart my entire tank and start over... thanks in advance!