Can ORP be too high

[JT101]

Hi All,

My ORP was running around 350-375 in May of this year, when I first established my reef. I calibrated the ORP probe not long afterwards and according to the cal it was only off by about 5. However, I got a dragon blenny about 3 weeks ago and the strangest thing has happened. Ever since I got this sand-sifting marvel, my ORP has been going up. As of last week it was about 397, was 420 late this week and today was up to 455! I didn't believe it so today I rechecked the cal - it was dead on.

Is this considered too high? I heard the higher the better, but...:Yikes: and is there some connection between my sand being turned over all the time and the high ORP or just sheer coincidence?

Thx

 

[polywise]

JT101,
My ORP runs in the low 400's most of the time. I feel anything above 350 is a good thing.

I also feel your sand sifter might be removing (eating) alge and some other matter that could be improving your water's condition.
Jim C.