shaywood Posted March 19, 2007 Share Posted March 19, 2007 I bought a Ozone/Redox controller for my tank in hopes of adding ozone. However, I've had the redox controller running for several weeks and see that my redox is about 405. Will I get much by adding ozone? Quote Link to comment Share on other sites More sharing options...
Theron Posted March 19, 2007 Share Posted March 19, 2007 That is funny, I just did the same thing. I purchased an red sea ozone plus with controller. Right now I am not running the ozone, just running the controller. Last I checked it was like 430 redox without running ozone. I don't think it is possible to have a redox that high without running ozone. This is my first time with redox/ozone so I could be wrong. From what I have read, it might be hard to measure redox, and the probes need to be cleaned quite often. When hey get dirty they read higher levels. I purchased the unit used and so was the probe. I am thinking of getting a new one and see if I see a difference. I know you can buy calibration solutions to check the accuracy. I have not tried them. Theron Quote Link to comment Share on other sites More sharing options...
shaywood Posted March 19, 2007 Author Share Posted March 19, 2007 Hello! I too bought a used controller, but bought a new probe. I have not calibrated. Do you know where to get redox calibration fluid? Quote Link to comment Share on other sites More sharing options...
Theron Posted March 19, 2007 Share Posted March 19, 2007 This is the calibration fluid that I saw for testing. http://www.marinedepot.com/md_viewItem.asp?idproduct=AM1433 It should measure 400mV. Theron Quote Link to comment Share on other sites More sharing options...
Palani Posted March 19, 2007 Share Posted March 19, 2007 If your tank is not heavily stocked then the potential will be greater w/o use of ozone. If you have an overcrowded and/or overstocked tank that uses a lot of O2 then the redox potential will be lower due to all of the organisms using up (breathing) O2. You should check the redox potential at night when there is little or no O2 being produced, so that would be the time for the lowest redox potential. Quote Link to comment Share on other sites More sharing options...
WAVES Posted March 19, 2007 Share Posted March 19, 2007 it takes 2-3 weeks before a redox probe is even remotly accurate. Dont bother trying to calibrate it until its been in use for a few weeks. Shawn I forget how long ago you picked up the probe, but I would wait a bit longer before believeing the number its giving you. re I run ozone for reasons other than simply increasing ORP, 2 things really, water clarity and parasite control. On my new tank I am going to run a Phosreactor with Bioballs and ozone, rather than running it in my skimmer. This is going to then go directly into another phosreactor filled with carbon to remove any ozone remaining. I may run phos media as well, but I need to look into the effects of ozone on ferric hydroxide. Quote Link to comment Share on other sites More sharing options...
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