Prevention is certainly the best cure. I got a blue hippo about 2 months ago, and religously followed the QT and hyposalinity process. I suspected the hippo came home with some ich, as he was scratching a bit the first day, but as I got the salinity down, that stopped pretty quickly, and hasn't scratched since. Also, the last week of QT, began adding garlic to both the hippo's and display's meals. When the time came to move, I introduced the hippo with as little stress as possible. Upon release, it took him about 30 minutes to act like he'd been there all of his life. I'm continuing with a few drops of garlic each day. No signs of any problems whatsoever...