To start, I have a small system and no QT. I got 2 new wrasses last week (7 days ago) and they went straight into the display. They have been eating well, very active, etc and today I noticed probably 2 spots of ich on each fish. Fish in my display have had it before and fought it off and I have never run a qt or let my tank go fallow to get rid of it. One of the clownfish might have a spot but I don't see anything on any of the other fish. My question is do I need to go out tomorrow (I won't be able to go till after work ~6pm) and get a qt setup, hope I can find copper, tear my tank apart to catch all of the fish and qt everything or do you think the new fish can fight it off if I keep a good feeding schedule and keep everything good in the display? I am worried I won't be able to catch these fish and that if I don't succeed that it will be more stressful than just leaving them be. Advice? Other options?