I just bought a new blue tang today. I need to know what the best way to add the new addition would be. I currently have 2 black and white stripe damsel, 6 snails, and 3 small hermit crabs. How long should the whole process take? The tang is really small like 2 inches long and I have a 5 gallon tank that I could use for a QT Tank to start with. Would that be a good or bad idea to put a few small live rock into the 5 gallon along with some water from the 75 gallon? I haven't decided for sure if I am going to QT that fish to start with as I really don't care about the damsel in the tank right now. How soon should I start introducing actual water into the bag? How much at a time and how long should I wait before adding more to the bag the fish is in?