I was having some trouble with ick in my main tank, so I purchased one of these UV turbo twists and hooked it up last night. I have my fish in a separate QT tank now and am treating with copper. They are all fine now. I know the UV will kill all the ick floating in the water. So how long do I need to wait before returning my fish to the main tank? I know you should wait at least 1 month and let the tank run fallow but I was hoping the UV would speed this process up????