I've never really had a good experience with UV sterilizers. I ran one in one of my early set ups 14 years ago but I didn't have a system that would see a difference. 4 years ago I tried a coralife twist and the bulb went out twice in one month so I just pulled it.
A couple weeks ago I got a deal on a Teco chiller and today I installed the UV kit on it
I'm curious to see the effects on running UV on this tank because I've heard from people who swear by them and from people that say that it's just a waste of money. Hopefully the bulb cooperates with this experiment because if it doesn't, I don't think I'll be replacing it.