Orp

[rreed]

So is there a formula for measuring orp per gallon of water? Or what would be considered a allowable reading per gallon of water?

[Randy Holmes-Farley]

ORP is not a per gallon reading, and a wide range is OK. It is not something to target, IMO, unless you are using ozone and do not want it to get too high.

This has more:

ORP and the Reef Aquarium
http://reefkeeping.com/issues/2003-12/rhf/feature/index.htm

[rreed]

Randy thank you for your reply. Found your article already thru a google search. It answered all my questions. Thanks again

[Randy Holmes-Farley]

:thumbsup:

Happy Reefing. :)