uv sterilizer

[GREATMIKE]

was wondering if any one runs a uv sterilizer in ther reef tanks .when i was at absolute fish the guy ther told me i should run one especially if i have any angel fish .because they get bacteria real easy.need some help if i do need one can i run it inline with my chiller and what size uv for a 120gallon

 

[DEEPWATER]

since i started my reef tank I used one ,but a few months later took it off ,I see no diff except cheaper eletric bills and less heat transfer
i dont have angels in my tank ,so i cant say

Fish only tank yes ,In reef tank i think uvs kill off bacteria (good ones ) that if im not mistaken

 

[pecan2phat]

In the many years that I've been keeping FO tanks, then some mixed reefs and a couple of fowlr tanks, I've run all types and small to medium sized UV units and I would say IMO that I don't actually see a difference with the control of disease.
I've had tanks run with UVs and regular bulb changes and they would still every now and then break out with some ick. I've had tanks that don't run UVs and the percentage is about the same as with the Uv'd tanks.
I still run a UV in my fowlr and no UV in my reefs, both systems have what I called controlled ick :lol:

 

[masterswimmer]

Great feedback Warren. Thanks for the expert control data.

Russ