ORP Question

[xxblackatlasxx]

So I have the Neptune Apex and I kinda get what it is, but I really don't. I know alot of people just ignore it.

I don't have a calcium reactor of anything like that. But there is a connection with that and pH. They say you want to keep you ORP below 450, but above 325 I think. The issue that I am having is that I cant get my pH out of the 7.6 - 7.8 range and my orp is from hardly below 450. It is quite steady at around 455. I don't know if that is the upper limit of this probe that neptune supplies or what.

So I guess my overall question is there a negative limit to the amount of oxidizers that I should have in the water in comparison to the amount of organics.

 

[Dan_P]

So I have the Neptune Apex and I kinda get what it is, but I really don't. I know alot of people just ignore it.

I don't have a calcium reactor of anything like that. But there is a connection with that and pH. They say you want to keep you ORP below 450, but above 325 I think. The issue that I am having is that I cant get my pH out of the 7.6 - 7.8 range and my orp is from hardly below 450. It is quite steady at around 455. I don't know if that is the upper limit of this probe that neptune supplies or what.

So I guess my overall question is there a negative limit to the amount of oxidizers that I should have in the water in comparison to the amount of organics.

Yes, you should ignore ORP readings. I think we are now at a point in the hobby of being in a state of denial about the uselessness of the ORP value as it pertains to maintaining aquarium health. Disconnect the ORP probe.

 

[Randy Holmes-Farley]

I would add that it is NEVER the case the ORP rises to problematic levels if you are not using oxidizers such as ozone. So one never needs worry about lowering it in the absence of overdosing oxidizers.

I discuss what exactly ORP is and is not in this article:

ORP and the Reef Aquarium - Reefkeeping.com

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

 

[xxblackatlasxx]

That you for the replies. I will do exactly that. Lol. I thought that might have been the case in why my pH is always so low. Lol. Thanks again.