LonghornReefer Posted December 12, 2014 Share Posted December 12, 2014 So I just received my Apex "Gold" from bulkreefsupply.com and am super excited to get this thing fully up and running. I have a question about the ORP probe. Do I really need to use it, I mean isn't the PH probe almost the same thing? The reason why I'm asking is that if I really don't need it , I could sell it to someone who may use it also be able to open up space for other modules. Any input is greatly appreciated. Thanks ARC! Mark Quote Link to comment Share on other sites More sharing options...
jestep Posted December 12, 2014 Share Posted December 12, 2014 Long version: http://reefkeeping.com/issues/2003-12/rhf/feature/ Technically has almost an inverse relationship with PH, but most people don't mess with measuring ORP. Typically used when messing with ozone reactors. Quote Link to comment Share on other sites More sharing options...
victoly Posted December 12, 2014 Share Posted December 12, 2014 ORP isn't a super useful metric unless you're running ozone. pH and ORP are interrelated, but far from the same thing. pH measures the quantity of hydronium (H3O), ORP measures how oxidative or reductive the water is. pH is a variable that controls ORP. Functionally, the 2nd pH/ORP probe is probably more useful for CaRx than to measure ORP. Again, with the caveat that I'm assuming you're not running ozone. Quote Link to comment Share on other sites More sharing options...
LonghornReefer Posted December 12, 2014 Author Share Posted December 12, 2014 My apologies, I know I could of probably googled thisbut what does it mean by running ozone? Quote Link to comment Share on other sites More sharing options...
victoly Posted December 12, 2014 Share Posted December 12, 2014 It's not common in reef tanks, but ozone reactors use an ozone generator to inject O3 (ozone) into the tank to. light reading Quote Link to comment Share on other sites More sharing options...
Juiceman Posted December 12, 2014 Share Posted December 12, 2014 ORP is only good if a handful of things. typically you'd see a drop in ORP if something died or if the skimmer stops running, etc. I pretty much don't pay attention to it. Quote Link to comment Share on other sites More sharing options...
Juiceman Posted December 12, 2014 Share Posted December 12, 2014 Ozone was used alot to raise oxygen levels prior to skimmers being as good as they are now. Quote Link to comment Share on other sites More sharing options...
victoly Posted December 12, 2014 Share Posted December 12, 2014 Ozone was used alot to raise oxygen levels prior to skimmers being as good as they are now. It's kind of like that, but not quite. Ozone is O3 which really only serves to break down organics by increasing the ORP. Downside is that it produces some nasty chemicals as byproduct that need to be removed via carbon. It's too risky IMO for what you can achieve with other means. Quote Link to comment Share on other sites More sharing options...
Juiceman Posted December 12, 2014 Share Posted December 12, 2014 Ozone was used alot to raise oxygen levels prior to skimmers being as good as they are now. It's kind of like that, but not quite. Ozone is O3 which really only serves to break down organics by increasing the ORP. Downside is that it produces some nasty chemicals as byproduct that need to be removed via carbon. It's too risky IMO for what you can achieve with other means. Thanks for clarifying. I've never ran it so I've never done any research on it Sent from my iPhone using Tapatalk Quote Link to comment Share on other sites More sharing options...
victoly Posted December 12, 2014 Share Posted December 12, 2014 CLARIFYING?! WAS THAT A DOUBLE ENTENDRE?! Quote Link to comment Share on other sites More sharing options...
LonghornReefer Posted December 12, 2014 Author Share Posted December 12, 2014 Great info guys ! Thanks so much! Quote Link to comment Share on other sites More sharing options...
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