It's a judgement call, but if you don't QT you are very likely to have some parasite or other issues sooner or later. Many reefers don't use a QT, Many others do. I do.
Once you get ick or a worse parasite in a reef tank there isn't much you can do without removing all the fish which can be quite the project. That said, ick specifically can often be "managed" or lived with. It's things like velvet that wipe out tanks.......
Once you get ick or a worse parasite in a reef tank there isn't much you can do without removing all the fish which can be quite the project. That said, ick specifically can often be "managed" or lived with. It's things like velvet that wipe out tanks.......