I'm very new to the SW game but have added quite a bit of differant coral type to my tank. I've never dipped themTo play devils advocate, I know several people who won't put anything into their tank without dipping it first. One buddy talks about seeing all kinds of bad stuff coming out of them on occassion when he dips them. I've heard stories of people introducing new corals only to introduce something along with i that they didn't want. I guess it kind of like new fish. I should QT them but I don't. I'm sure I'll pay for it one time. Already kind of have on the FW side.