Unfortunately itââ"šÂ¬Ã¢"žÂ¢s not really a traditional hospital type quarantine, as I use it to quarantine many things including inverts, corals, etc. Itââ"šÂ¬Ã¢"žÂ¢s a 30 gallon tank and I use base rock as a biological filter, so Iââ"šÂ¬Ã¢"žÂ¢m not so sure about bleaching it to start over.
I have done hypo, treated with antibiotics, and a number of other things over the years (no copper) and have never had any issues with this arrangement. Up until this latest disaster (only a few Chromis) I have not lost any fish in quarantine as a result.
I would really just like to wait it out if at all possible, thatââ"šÂ¬Ã¢"žÂ¢s a lot less work then breaking the whole thing down and then trying to get it re-established and stable again.