I was just trying to stress the fact that a great deal of problems could be avoided if the hobby came to consider a QT an essential, must have piece of equipment when setting up a reef aquarium. Considering the stress that fish, for example, go through during capture and transportation along with being dipped into a number of holding tanks, most of which probably have their own resident parasites, you can make a good bet that the odds of bringing home more than you bargained for are very high. Anything that is wet should be quarantined.
Per a hospital tank, a QT can be used for such purposes if the QT is used as a bare system and not kept running at all times. For the cost of a basic aquarium, a heater, aeration and a little hang on filter (walmart usualy has such setups for about twenty bucks or so), I feel it is not only the cheapest method of prevention, thus saving the lives of many creatures, but also our own best first line of defense. How many of us still battle Ich for example? Why is that? Surely not because all wild fish are infested with it.
Chuck