Frag tank as a qt?

[Aquattro]

Originally Posted by rhody605

Can a person safely use a frag tank as a qt? Will some medications harm frags?

No. Yes.

If there is disease, then the frag tank would need to go without fish for a long time before you could, in good conscience, sell any frags or move them to your display.
Meds, like copper, will kill any frag. So will chloroquine. And malachite green. Probably most effective meds will harm corals.