Orp lowering

[Mushmouse62]

My orp is 465 how can I lower it? And keep it consistent?

 

[Redfoxtang]

I would believe a high ORP is good as I believe it’s oxygen based in the water column. But here is a good article about ORP.

http://www.reefkeeping.com/issues/2003-12/rhf/feature/index.php

 

[Pistondog]

My orp is 465 how can I lower it? And keep it consistent?

How old is the probe?
Thats way high, are you using ozone?
Try a lab grade. 2 junction probe, or clean the one you have in vinegar.

 

[ReefPig]

Why would you want to lower it would be my question?
ORP really is a bit meaningless, it's good for identifying big issues when they occur, suddenly swings etc.

If it consistently shows 300 or 400, who cares. Swings happen naturally during the day/night too, often the opposite of PH.
I have in the past seen cyano and dino's throw it off big time though.