Oops, I guess I should of clarified "bad things" as the possible ich I have in my tank, my water quality and parameters are fine/normal. The idea was that the UV would kill the ich parasite when it passes through it, which in turn would hopefully slow down the ich cycle. I know it won't get rid of all of the ich but maybe it would help.
I honestly don't have the space to QT and do hyposalinity to all my fish for 6 weeks and I don't even know if it is ich in my tank or not. Since my fish aren't stressed out, are eating well and behaving normal, I don't really want to take the chance of stressing them out and losing some in the QT process.
I guess I should of just asked for pro's and con's of using UV.
