Mark Henry wrote:

Half the people (and references) I've talked to say I need a UV
sterilizer on a reef setup (no matter what room it's in), the other half
say no. So, what's the deal? Do I need a sterilizer or not?

I would not say you *need* one, but I've kept at least one on my tank for about
30 years. It seems to reduce the number and severity of outbreaks of parasites
like ick.

George Patterson
Coffee is only a way of stealing time that should by rights belong to
your slightly older self.