Wow!!! Calm down man! I was by no means suggesting that not using a QT and just using medicated food was the way to go. I simply stated that if OP was unable to remove all of their fish from the main tank into the QT, that using a UV and medicated food can help sometimes keep the ich at bay and minimize its effect on the fish in the tank. I am in an unfortunate situation where I cannot remove my fish from my display tank without destroying the tank, so I chose to try management instead and its been 4 months with no signs of infection on anyone in my tank. Is there still traces of ich floating around in my tank? No doubt. Would I prefer to QT my fish for a month or so and completely wipe out the ich for good? Absolutely!! I was only offering a backup option for the OP if QTing all of his fish was not feasible, I was not stating that it was the only way to go.