I know it's a tough question, but I am curious. Why would you QT one group of apparently healthy fish, while ignoring another group of presumably healthy fish?
I could certainly understand why you might QT fish from an unknown source, but in this case, where both fish are known and appear healthy, isn't the risk just as great for the introduced fish a it is for the fish they are being introduced to?
I could certainly understand why you might QT fish from an unknown source, but in this case, where both fish are known and appear healthy, isn't the risk just as great for the introduced fish a it is for the fish they are being introduced to?