What is "ORP"?

[fishgate]

OK I'm stupid what is the ORP sensor? It comes with the RKL and is related to the pH.

 

[username in use]

"Oxidation Reduction Potential"

 

[username in use]

Here's a good article on it

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

 

[solitude127]

http://lmgtfy.com/?q=ORP