Ok, so I think I have a bad case of velvet in my 150 gallon. I lost some of my favorite fish and some are showing signs of distress. I have a hospital tank, its 50 gallons and I have it empty next to my main tank. I just need advice on setting it up, what do I truly need? I was going to take some junk rock from my main tank that I don't care about(like scraps of frags etc) and transfer water from the main tank and then add pvc and move the fish in. Does that seem like a plan? Also when and what should I add for meds? Lastly can I keep my coral and inverts in the display tank until treatment is done? I plan on redoing my aquascape when it is all over.