My AT will be here in the morning. I've read all of this post and many parts twice. I've had Ich in my DT before, lost many fish and then left it fallow for 4-5 months and I treated the remaining fish with cupramine for 21 days-I don't want to do that again. I have heard the horrors of AT's with copper and with hypo, so my plan is to use the transfer/bucket method for twelve days after he starts to eat (Thank you Yurivd for the reminder that there is a third 100% successful way to combat ich that is mentioned but seldom used - very difficult to find recent info on this method). I have two 30 gallon rubbermaid totes that I will fill with water from my QT, matching salinity, temp and pH. I will have PVC pipes in the totes with an airstone, heater and MP10 wetside. I plan to move my AT every two days, throw away the airstone and wash everything with boiling water then let it dry. After the transfer method is complete I will move him to my 75 gallon QT with both MP10's for observation and PraziPro Tx. It is set up for long term QT with a sump and an algae turf scrubber. I don't expect him to be in my display for 4-5 months. Wish me luck! I'll try to post with results.