I had a QT tank set up and lost all fish i tried to QT. Lemon peel
angel( small ) and a scopas tang also small. LFS told me that the fish
dont come with the disease, its the water that holds the parasites.
They said that if the fish in the main tank are doing fine its cacuse
their immune systems are strong and that QT are a waste of money.Also
that QT causes them more stress and thats why they died. NOW NOW, Im
not saying I agree......(please dont hit me) lol, but since i tried to
QT other fish and paid so much money ($80) for the purple tang, I
figured that I'll try it their way......I agree, tangs need bigger
tanks but I'm a sucker for a purple fish...

Mirek