Woke up to disaster this morning. I got a six inch yellow belly regal tang on wholesale, had him in my 55 gallon quarantine for about four weeks now. Eating like a pig. Added in my blue throat trigger male and a tennenti tang. Started developing ich two days ago, so I started dosing cupramine. Woke up this morning and they were all dead. My trig is the last survivor and he is currently laying on his side gasping. I did a huge water change to try and save him, but I think I'm too late. I think I dosed the copper too heavy, too fast. Heart breaking.