All this talk about QT tanks is awesome, very informative and helpful. My question (as I myself don't have a qt, but want to get one before I stock my new tank) is what is needed/required vs. what is wanted/optional for a qt setup? I stocked my first tank with out QT, I went for those fish who were in the lfs for a while with the philosophy that they must be healthy if they are still alive after 2-3wks and I always buy from the same guy, he has earned that trust because he has been brutally honest with me, not many lfs's will do that. He is all about earning repeat business by honesty and education rather than bottom line and profit. I check all my levels every 5 days and am constantly doing visuals. Yes...Im even one of those folks who has names for all my fish! I have an orangeshoulder tang, coral beauty, flame angel, 3 blue chromis and two O. Clowns....in my first tank, all super happy and healthy and are all original to the tank. I will be moving my tang to my new (larger) tank in about a month as he has outgrown his current tank. Should he be QT'd before I introduce to the new tank? Thanks so much!