When it comes to a QT do you guys let the fish rest a day or so and then give them copper treatment for ich and such as a precaution. Or do you just let them sit in the QT for a set amount of time and hope they show no signs of disease that could be introduced into your tank? also; I welcome criticism on my rockwork. Since my last tank seemed to just be one long single height rock running across and it was ugly. I took some ques from the posting by @Veganbrian on art/rockwork.