Originally Posted by
sepulatian
http:///forum/post/3111532
It is another parasite. The danger with this one is that it concentrates in the gills. By the time that it appears on the fish's body, the fish is highly infested. It can easilly wipe out a tank full of fish in no time. The only cure is copper treatment, which cannot be done in the display. On top of that the parasites have a longer life cycle than ich and can survive two months or more in a tank without fish. It is a nasty parasite to get.
IMO the only time that a quarantine tank is stressful to fish is if the tank was just thrown together or is grossly undersized, which results in poor water conditions.
Yep, what could be LESS stressful than having a tank with plenty of hiding places and no bullies or competition for food? And, if you use water for your QT taken from your DT at water change time; the new fish will be completely acclimated to the DT's water condition when his probation is over.
BTW, I had a case of velvet, like Kirk talked about, show up on a fish in QT a few months ago. This stuff can be hard to spot and I can't imagine the headache if I put this fish straight into a DT. It was very easy to cure in QT.