I have a 120G, LR and coral. Bought a fish the other day and now have MI. Was bad for 1-2 days and now I don't see spots but have read that the ich is still in the tank. Since I can't treat the DT I set up my 55 gal as a treatment tank. Have a Eheim 2217 and I took a bunch of filter floss from my DT and put inside a mesh bag for biologic (Floating around). Was only a week or two old so not sure if that will have enough for all the fish? 3 small tangs, Fox Face, long nose and one clown. Fox Face was the newest addition. I moved to QT. All the rest are still in DT. Should I move them all over (Hypo) or just leave it alone and see what happens??