Thank you for asking. I just killed him 90 min ago. I put up a new thread--euthanization gone bad. Currently I am moping. My main tank is tolerating prophylactic treatment, though. I do think my boy had something else in addition to the ich-he hadn't been quite right in a while. My baby platy in the QT is doing just fine despite the heat, salt, and antibiotic. Why don't we just treat fish for ich when we QT them?