Hi, I routinely QT fish for 30 days before entry into my show tank. I am buying a few discoma and a toadstool and have a QT set up with a canister filter and 60 W of flourescent lighting on a 20GL tank. Any opinions on QT corals? Is it worth the trouble? I had an outbreak of ich in my tank previously and I'm concered about parasites entering on the rock the corals are attached to.