Originally Posted by
alexmir
So will the worms or hitch hikers that are on the rock die when I QT the rock? it seems llike they would just stay in the rock because im not putting anything in the QT tank to kill them.
it allows you to catch certain pests before you put them into your tank (majaono, aiptasia, mantis shrimp, teddybear crabs etc), and possibly treat for or remove them; or in the case of ich, QTing in a fish free environment will kill off the ich without medication, because ich can only survive for a finite period without a host. if you take a piece of lr that was in a tank that had ich recently and still has a viable host you could potentially infect your own fish.