spionid worms and zoas

[devmax]

I have had spionid worms in my 90 gal for quite a while and generally haven't thought them a problem (A nuissance yes, but not a problem). That's recently changed. I purchased a small frag of zoas and they have been doing well except this morning I looke din the tank and one of the spionid worms had his web attached to one of the polyps. I read on zoaid that these worms can irritate my zoas to death.
So, how can I kill these suckers? If I break the tube they just float to another rock. Sure my fish eat some but not all of them. Is there a natural predator or am I stuck breaking the tubes?

 

[michaeltx]

you could always seal the tube instead of breaking it off sealing it would kill the worm eventually.
Mike