It will be fine. I have 2 Aquaclear filters myself and haven't found this to be a problem. So, are you planning on cycling this tank with fish? If your filter is brand new then your fish will have to survive a cycle. The ammonia and nitrite will be much more toxic to your fish than ceramic dust.
If this is your QT
tank, does that mean you have another tank that is cycled? If so, I would add the platies and the new filter to your cycled tank. Your platies won't have to cycle a new tank, and in a few weeks there will be enough bacteria in your new filter so that you could pull it off of your cycled tank and put it on your QT
tank- this would be much less stressful on any fish you put in your QT