I am in the process of moving my tank from one room to another and have flatworms on my toadstool and on my torch coral, i know that this means they are in the tank, i have bought predators to hope fully take care of this. I am wondering (think i read somewhere) that i could do a freshwater dip to kill them off of the coral. Will this work, if so how do i go about doing this?? Will this hurt my corals, if not how long do i dip them?? Any help would be appreciated, and i don't want to use flatworm exit if i don't have to.