High nitrates , 0 phosphate help!

gregzz4 · #1 10-25-2018, 01:38 PM

Bringing your PO4 up should help reduce your NO3. I use Seachem Flourish Phosphorus liquid plant food.
Start with small doses until you see an effect. Once you get the NO3 down you should be able to stop dosing.

gregzz4 · #2 10-25-2018, 04:57 PM

Actually, I’m not sure that will work since you have no corals to consume it.
You may need to chemically remove the nitrates

Frogger · #3 10-25-2018, 07:46 PM

Quote:

Originally Posted by gregzz4

Actually, I’m not sure that will work since you have no corals to consume it.
You may need to chemically remove the nitrates

That is what I was thinking. If he started added phosphates now he will just get algae and more cyno. I think the high nitrates are fine, once he starts adding corals if he brings his phosphates slowly up his corals will start using the nitrates and he may be fine.

gregzz4 · #4 10-25-2018, 11:58 PM

Quote:

Originally Posted by Frogger

once he starts adding corals if he brings his phosphates slowly up his corals will start using the nitrates and he may be fine.

Ya, I agree

Quote:

Originally Posted by fadecase

Thank you I will try that this weekend , and see how it goes

You mean adding some corals, right? Don't add any phosphates right now

gregzz4 · #5 10-26-2018, 12:02 AM

On a side note, unless you want it all, you don't need so much rock.
I have a 60g sump on my 75g DT for a total of 115g system water with less than 40lbs of LR. I have a decent skimmer and change out a 7" sock weekly.

With so much rock I forsee detritus issues in your future with PO4 and NO3 leaching back into your water.

DEAD_BY_DAWN · #6 10-26-2018, 01:43 AM

https://www.jlaquatics.com/orca-labs...bes-500ml.html

gregzz4 · #7 10-26-2018, 02:32 AM

That product looks like it will suit your needs. You'll use pretty much the whole tub - based on your tank size and I'm assuming you have a sump.
Good on ya Jon.
Hopefully the link survives the Mods ...

vanreefer · #8 10-27-2018, 02:11 AM

Quote:

Originally Posted by DEAD_BY_DAWN

https://www.jlaquatics.com/orca-labs...bes-500ml.html

carbon dosing and biomedia that host bacteria all require phosphates to be present to be effective... if your phosphate is actually 0 (I don’t know how reliable/accurate the test kit you are using is) you will need to Add phosphate to lower nitrates.