Bristle Worms (0/1)

I have an issue with FREE live rock that contained a FEW bristle
worms. It started out innocently enough with a few worms, now the
situation is a little out of control. I added a large aero crab,
which you can see in the pictures has now become the prey. I will be
making up some traps and get rid of as many in the future.

All new rock will now be sanitzed from the pet store and only
purchased from reputible places.

In the mean time are there any other Ideas out there on removeal of
these worms??

Roy