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Unread 03/05/2013, 09:19 PM   #1
derekjmd
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uv sterilizer pros and cons

what are the pros and cons of using a uv sterilizer in a reef tank?


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Unread 03/05/2013, 09:26 PM   #2
wooden_reefer
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pro

reduce incidents of bacterial infection of fish in DT and also in QT

reduce algae in water in DT.


con

degrades some drugs in QT.




no impact on ich or good bacteria in substrate


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Unread 03/05/2013, 10:01 PM   #3
DUPioneers
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There are some other potential cons to running UV:

1) Properly sized, one can increase the temperature of the water - possibly to the point of necessitating a chiller.

2) They are expensive to run, electricity-wise.

3) Running UV will kill some amphi- and copapods (though likely not enough to worry about).

4) Depending on your setup, running UV may require you to purchase a separate pump.

5) Without proper, diligent, and (potentially) expensive maintenance (replacing bulbs, maintaining seals, etc...etc...), their effectiveness degrades significantly over time.

Also...do keep in mind that you have to make sure that you get a properly sized unit for your system - your entire system, not just the DT. Oh and you have to make sure that the flow rate you put through the unit is properly matched to the manufacturer's specifications.


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Unread 03/06/2013, 09:47 AM   #4
derekjmd
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I was thinking about the jbj canister filter with built in uv.. anyone know anything about that filter?


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Unread 03/06/2013, 10:12 AM   #5
DUPioneers
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Quote:
Originally Posted by derekjmd View Post
I was thinking about the jbj canister filter with built in uv.. anyone know anything about that filter?


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IMO, the UV integrated in those filters does not have sufficient strength, flow rate, or contact time to be of any real benefit - particularly to a reef tank.

I mean, it won't HURT, but it's likely not worth the extra money.

The UV systems that really DO work are ones like this:

http://www.bulkreefsupply.com/empero...v-40-watt.html

...note that it's almost 4 FEET long and costs almost $400.


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Unread 03/06/2013, 10:18 AM   #6
HumbleFish
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Quote:
Originally Posted by wooden_reefer View Post
con

degrades some drugs in QT.
Another con: The cost of replacing the bulb every 6 months.


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