I`m Dumb

Ugh, found 2 ich spots on my blue hippo tang today.  Haha, after a trip to Lowes to get some plexi-glass to trap her in a corner of the tank, she's back in QT.  I'm not going to "wait and see" for a week and a half this time.  I guess the move from the QT with my dying powder blue tang without acclimation was too stressful (Yeah, I = moron).  This whole ordeal has been a HUGE headache for me.  I just hope she
wasn't in the display long enough to re-infect the whole tank, (maybe the UV sterilizer will nuke the free parasite?).  I guess I'll find
out in a few days /DesktopModules/ActiveForums/themes/_default/emoticons/sad.gif  Getting those chromis out again is going to be
horrible if they get it. Although, the chromis and clowns never got it, and my longnose butterfly fought off the ick before I put him in the month long QT, so hopefully I'm ok.
A couple lessons learned: 
Always, always, always, always, QT new fish before you put them in the display.
Always slow acclimate them back into the display tank. ( I should have known better, but I seem to make really poor decisions when I'm extremely stressed out /DesktopModules/ActiveForums/themes/_default/emoticons/tongue.gif)
I'm a little confused about something though.  In my research about ich over the past month while my fish were in QT, I read that once the fish get ich it's always dormant in them and can be reactivated by stress.  So my question is, why do people suggest running the tank fallow for 4 weeks if the fish still carry the parasite?  Is it just to get the level of parasites in the tank down to help lessen the likelihood of another outbreak?  If what I've read is right, stress can cause a relapse for the life of the fish now?

 

Yeah, I know. They are ich magnets. All of the fish looked great in QT other than the dying powder blue. The blue hippo always hid, but fed whenever I threw food in there. I saw one spot on Weds. night on her and thought nothing of it, but then yesterday there were 2 more in different areas (One on her pectoral fin and one on her cheeck). She's staying in QT another 4 weeks. I'm not taking any chances. Chelated copper was maintained at 1.5ppm, and tested every other day. I did two 25% water changes every week. I really think that it was because I panicked about all of my fish being in QT with the dying powder blue so I didn't correctly acclimate them back into the tank.

 

About 3 weeks now /DesktopModules/ActiveForums/themes/_default/emoticons/tongue.gif I think it's still ok. It's a Current Gamma UV 25w powered by a maxijet 1200. They say to replace the bulb every 8 months.

 

I've never had a problem with water clarity, just this stupid Ich. So I can't tell a difference between having the UV and not having it.