FW Dipping

[PFisher]

It is time to get rid of those pesky flatworms that have been the bain of my existance for the past several months.

The plan is to FW dip the LR and let them re-cycle in a 10 gal off to the side. I still have a filter with bio media and dead rocks for the fish, so the main tank should be fine during this time. Then once the rocks are cured and ready to go back into the main tank, out comes the dead rock and substrate along with any remaining flatworms. Then I run with a bare bottom for a while so that I can see and squish any that I missed.

My question is with the FW dipping, how long should the LR be in the FW? Should I scrub them? Are there any other major flaws in my plan?

Thanks.