Ok, when you run a pet store, go ahead and quarantine a whole shipment. Yes, new fish every week. Rarely are the fish affected, in my old store, at least, because we kept them healthy. A fish gets ich if it can't fight it off. And I always told people to quarantine new fish first, its common sense. Whether or not people listen is another story. I alawys told them to watch for ich, as just about every pet store is infected with it. I was not defending PetsMart, just stating how to solve the problem he was facing. Why the flaming?
Instead you should have explained in a nice way why you thought I was misinformed or wrong, and then if I responded rudely, then you can flame...