Tank Treatments to rid pests


Reefing newb
I'm ready to treat the tank to get ready for the swap and wondered what is the best way to treat it. I need to treat for flatworms and any other critters, but I dont want to kill off the good stuff like pods. I'm selling the live sand, and don't want to kill off the good stuff in there either.

I have a big bottle of Iodine that I'm going to dose the tank with.

Any other suggestions?

yea a wrasse would be best for the flatworms... treating them in the current numbers would poison the tank and kill most everything, since flatworms release toxin when they die.

A good sixline and a tang and that rock will be great.