I am so beyond upset - mostly with myself right now - for being so stupid as to purchase a fish and not quarantine it first. I last year I spent 3 months and a lot of money dealing with ich when I stupidly purchased a fish from a local not very reputable store and put him directly in my tank. I was brand new to the hobby and didn't realize I needed to quarantine so I chalked that up to a learning experience - albeit expensive and time consuming. So fast forward to this year - I have a local shop that quarantines for at least a month all new purchases. They charge and arm and a leg for all of their fish, but I figured (based on some other customers reviews and suggestions) that it was safe to purchase from them and place directly in my DT. They have a great reputation as a LFS and have been in business for 20+ years. Love shopping there. So tonight I purchased a yellow tang. The lighting wasn't the best, and we were in a bit of a rush but I did do a careful inspection of the fish and he looked fantastic. So we got him home, acclimated him into the DT and he was off and swimming....right down to my cleaner shrimp who spent the next 20 minutes working him over. After he came up under my T5's, my daughter (who has better eyes than me) noticed the ich. It was ALL over him - just very very tiny spots that were only visable under the intense light and at certain angles. Complete disaster. I can't catch him without completely taking apart my tank. I do have a tank downstairs that I just filled and have heating up - and have a filter on it. But its not cycled, and even if I can catch him and put him in there its going to stress the heck out of him with a non cycled tank. Plus the rest of my fish have now been exposed, and I can tell you its insanely hard to catch them and I DO NOT want to go through that whole process again. But when it comes down to it - this was all MY fault. I should have quarantined, and I want this to serve as a warning to others - there is NO fish shop that sells fish that are ok to go directly into your DT. Yes you might get lucky, and may dodge the bullet completely. But I sure didn't, and now honestly I'm just thinking of getting out of this hobby entirely. I am not willing to nuke my display tank with Cupermine killing my live rock that I've worked so hard to cultivate. I just invested in an extensive clean up crew, copepods, set up a refugium, bought a new reef octopus skimmer, installed a Reefkeeper system - and now it's all a waste due to freaking ich. So upset right now. Any chance if I get the yellow tang out I might avoid spreading it to the the other fish? I do know that ich probably exists in most systems lying dormant - and I know it ususally spreads when the parasites burst from the fish so maybe they will be ok if I can just get the tang out and treat him? Sorry for the rant - just so tired of dealing with ich. Anything else I can handle, but this is just the worst.