For a fish only setup UV is good, but for a reef setup it does good things, you must only then decide what you prefer the actions of the UV or the results of having more of the benifitial organisims as well as the bad without.
Many people only see the noticable actions of the UV (less desiese or less micro algea) and forgo seeing the actions it has on the other live micro organisms in thier reef.
If you can say even at a 50% death rate of live plantonic life is worth the benifit of having the reduction of the other more harmfull lifeforms is something you can agree with then by all means give it a shot.
I however preffer to keep a large diversity of life in my reef, and wouldnt use UV or Ozone ever again.
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