Hi my name is Brandon and I’ve followed a lot of your threads and wanted to ask some questions. On my apex I pay attention to the orp a lot. I’ve notice in the past couple of day it’s gone down from 370-250 but it will also come up through out the day but drop back down. I don’t run ozone. So I’ve been wondering if it’s because I’ve been letting my skimmer just bubble back into the tank because I’ve been trying to get my nitrates up from 1.0 to 4.0 and I’m just about there. I just don’t know when I should run my skimmer properly again to maintain my nitrates. I guess my really question is should I be worried about my orp being lower?
Orp
- Thread starter BJcorals
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Nope - not at all.
ORP is REALLY complicated stuff. Trying to understand the causation involved in ORP movements is pretty difficult. It's a general indicator of overall tank health, but trying to use the value as an indicator of anything specific is not really helpful, in my experience. More than anything else I can think of, ORP is one of those numbers that you don't want to try and control.
In your case - trying to control nitrates - I would suggest you keep doing what you are doing; testing the nitrates as you make changes to your system setup. It's the thing you're trying to change, so it's the thing you should be measuring.
Dr. Dendrostein
Marine fish monthly
When my stream pump comes on my ORP I believe increases then it decreases when the pump stops I have like a surge motion.
When my dosing pump comes on to feed through the day orp drops then comes back up. So what you're going through should be normal
