Uv??

Stevensun - I don't think that is what he is asking, I took it to say holding a fish under a UV lamp is a way to get rid of parasites. But you could be right too. IMO UV just helps to control, not remove the problem
 
Holding a fish under a UV light source could lead to skin cancer for you and possibly the same for the fish. If you are looking to quickly remove parasites from a fish, do a 3 minute freshwater dip properly buffered with the same temp.
 
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