Flatworm eradication plan!

[ScubaSteve]

So, a few weeks ago I noticed some of them brown flatworms in a low flow corner of my tank. I siphoned them out and have been pretty on top of them... that is until now. I think I am starting to lose this battle...

I've read up on all the different methods to get rid of the buggers but I need a bit of a strategy... because I move tomorrow! (the tank will be moving a few days after). Now I am planning on replacing the sand with a nicer, finer sand in the process of redoing the tank so I am not too worried about eradicating the flatworms from the sand but I sure as heck don't want them in my rocks and in the new tank.

How would you approach this? I am debating treating the whole tank with Salifert and carbon before moving OR doing a Salifert dip as I disassemble/reassemble the tank. I figure that dipping as I move would reduce the chemical stress from the dying flatworms on the other livestock but I don't know if dipping and moving would be too much stress for the livestock attached to the rocks.

Thoughts?