Ok let me make sure this is correct. I have a hippo tang, it has Ick. If I move it to a qt tank with the other fish, I'm sure they are also infected. Pajama cardinal, Blue Damsel, domino damsel and tomato clown. I can leave my cleaner shrimp, peppermint shrimp, brittle starfish, hermit crabs, emerald crabs, and snails in the DT tank (because they are invertebrates and I have read they are not susceptible to ich) and leave it fallow for 8 to 12 weeks. that should eradicate the parasite because of its lifecycle? in my DT? Then I can treat my fish in my QT tank to kill the parasite?