ORP Probe- How long to settle down?

[RacerX308e]

How long does it take for the ORP probe to settle down and give a correct reading? 24 hrs later and the probe reads 105!

 

[elephen]

~ 1 Week

 

[RacerX308e]

Thank you very much.

 

[RacerX308e]

My ORP reads 235 after a week. Should I worry? The tank looks normal with no problems.

 

[ZoeReef]

Mine is reading 297 after three days. I'm a newbie also..

 

[RacerX308e]

Yours has gotten up quicker than mine. Close to two weeks and mine is 250. I'll give it another week before I panic.

 

[Aquaduck]

After a week you will need to clean the probe with a soft toothbrush or you will get false high ORP readings. Once a month mine gets a vinegar scrub bath.