lugols for that duration wont kill aefw or redbugs.
The method that I plan to use consists of 20 minutes in a fluke tab dip (1 pill per 1.25 gal) followed by a longer term interceptor bath of 8 hrs.
People are also using tropic marine pro coral cure with mixed results. I think its mostly lugols iodine.
Doesnt always kill aefw though, and thats the only real pest that will decimate your tank and may go unnoticed for a year or more. (just enough time for your prized collection to encrust and get settled)