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ORP / Redox too high?

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Topic: ORP / Redox too high?
Posted By: Mark Peterson
Subject: ORP / Redox too high?
Date Posted: May 22 2006 at 8:32am
What would be too high?
 
Would 513 be too high?


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Replies:
Posted By: jfinch
Date Posted: May 22 2006 at 9:11am
Too high.

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Posted By: tileman
Date Posted: May 22 2006 at 3:29pm
Definately too high. Anything above 450 is too high.  My set point is at 400.

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Posted By: Mark Peterson
Date Posted: May 23 2006 at 1:44am
What is wrong with it being this high?

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Posted By: jfinch
Date Posted: May 23 2006 at 10:25am
We use ORP here at work to control biological life in our cooling water systems.  At ~650-700 everything is dead.  500 - 650 is also lethal to most biology but it takes time (a few hours).  Pristine ocean reefs are ~400 - 425.

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Jon

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Posted By: Guests
Date Posted: May 24 2006 at 11:44am
What would be too low?


Posted By: Mark Peterson
Date Posted: May 24 2006 at 9:24pm
What if it gets this high on it's own without O3, 
or even with just 25 mg/l in a 120 gal tank?


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Posted By: jfinch
Date Posted: May 24 2006 at 11:07pm
It won't get that high on it's own.  It will need an oxidizer to get that high.  If you're getting reading like that, I'd say the meter is suspect.
 
Amie, too low is much more subjective.  I'm really shooting from the hip but I'd say somewhere in the low 200s to upper 100s might be low enough to warrent investigation into your filtering/feeding/general husbandry habits.


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Jon

https://www.youtube.com/channel/UC6y_EzjI_ljbIwf2n5uNzTw" rel="nofollow - What I've been doing...



Posted By: Bryguy514
Date Posted: October 31 2006 at 10:21am
I know this is a old post but my tank also reads about 500 without Ozone and just wondering how people clean there probes or does OEP need to be calibrated.
 
Thanks


Posted By: tileman
Date Posted: October 31 2006 at 11:40am
Clean your probe with a 50 /50 water , vinegar solution.  Let it soak for an hour and then use a soft toothbrush to brush it clean.  Then recheck your orp.

-------------
335G Reef
TOTM.
http://www.advancedaquarist.com/2015/2/aquarium
ReefKeepers TOTM Feb. 2012
http://reefkeeping.com/joomla/index....k-of-the-month






&


Posted By: bbeck4x4
Date Posted: October 31 2006 at 4:07pm
their also is a breakin for new probes I belive that it is near two days,
a lot of probes/displays are out of calibration also that could show a high number.




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