Treat ich or ride it out?

[mark]

Few weeks ago noticed a few spots of ich on both the Regal and Purple Tangs and after 3 days totally gone.

Was planning on setting up a QT then pulling out all the LR to get the fish but have been dragging on it mainly because not to excited on the idea of moving a whole lot of rock, disturbing the corals but also no signs of ich for something like 18 days.

Figure I brought the ich in last April when I got the Regal but except for the little outbreak a few weeks back, nothing.

Should I just buck up and pull my 145g completely apart or wait and see?

(other fish are a clown, 6 Line wrasse, Foxface and 2 damsels)