I think the only reasonable course of action is to rip down the whole tank and dip every rock and coral in iodine. Throw out yor sand and bleach all your equipment for 2 weeks.. then you can buy new sand and start reintroducing all your rock and coral into the tank.
Seriously though, if a dip kills them and doesent kill the corals as long aas people are prepared to do the dip I don't see a problem. it is like flat worms.. if you know they are there you can take aproperate action to prevent them from getting into your tank.
Steve
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*everything said above is just my opinion, and may or may not reflect the views of this BBS, its Operators, and its Members. If cornered on any “opinion” I post I will totally deny having ever said this in a Court of Law…Unless I am the right one*
Some strive to be perfect.... I just strive.