Nitrate

[Maine Reefer]

How low do I want my Nitrates to be in a reef tank?

 

[Crabs McJones]

As low as possible

 

[SDReefer]

Between 1 and 5 ppm

 

[Maine Reefer]

As low as possible

But at what point would I want to do an immediate water change?

 

[Crabs McJones]

But at what point would I want to do an immediate water change?

Hard to say, I would start with 20PPM or more, some will let theirs get to 40PPM

 

[Randy Holmes-Farley Verified Community Expert]

But at what point would I want to do an immediate water change?

It's not an emergency situation unless it is above 100 ppm. How much above, i'm not sure, but maybe much higher.

 

[Bug235]

My 150 mixed Reef has always been low under 10 for sure closer to 5 most of the time but lately I have a spike near 20-25 but my corals and tank have never looked this good so go figure. I do weekly water changes for last three years, pellet reactor, purigen in sump, phos guard in sump, big skimmer 24/7 , chemiBlue, I know it’s because I over feed my fish, but fat fish = healthy fish