Pros and Cons to UVfiltration in a Reef tank?

[banditpowdercoat]

Is there a con to using a too large UV? I see they're reted in W, for gallon size, is there any drawback, other than cost, for putting a 18W unit on my 45g tank?

[Tom R]

The kill rate of a UV filter is a relationship to the wattage and the flow. The bigger the wattage the lower the flow the higher the kill rate.

I also believe that it kills the good with the bad. I use to use my UV for about a day once or twice a month.

As I am now on ZEOvit UV is not used (why spend all that cash to build a bacteria base and then kill it with UV).

Tom R

[dsaundry]

I am in the process of hooking up a uv system for my tank as well. I was told that if you feed your corals anyway, whatever the uv may take out of the system shouldnt be too bad. Still researching it though as I dont know whether to plumb to tank or through sump. Any suggestions.