Zero NO3, Zero PO4 for a month now dosing NO3

Hitman

Reefing One Day @ A Time!!!
View Badges
Joined
Jul 10, 2017
Messages
3,712
Reaction score
13,414
Location
NW Arkansas
Rating - 0%
0   0   0
For the last month my weekly water tests I've had readings of zero Nitrate and Phosphate so I started yesterday dosing N&P. Today my BTA's when from this
3D7E04D0-23F5-49C7-8DEC-381F6C150E4E.jpeg

To this
3D7E04D0-23F5-49C7-8DEC-381F6C150E4E.jpeg

And the only change was trying to dirty the water a bit. Before I hit all zeros I was at 5ppm nitrate and .02ppm Phosphate. So what gives?

I'm dosing 1 ml hourly of Pharma Grade Sodium Nitrate mixed at 1 cup powder into 1 Gallon of RODI water which is adding 1.1 ppm ish daily. I did a initial dose of 100 ml and tested about a hour later. On a Salifert test I got 5ppm doing the test twice to double check myself. Tested again tonight and still have 5ppm.

As for PO4 I started dosing Sea Chem Phosphorus I did a initial dose yesterday of 15ml and still test zero on my Hanna LR PO4. I opened a new box of powder and retested with the same results.

Remaining perimeters are as follows
Alk 9.5DKH Hanna
Ca 445 Salifert
Mg 1450 Salifert
Salinity 1.025 Refractometer ( calibrated before each use )
PH 8.2 Apex

Chaeto under a Kessil H380 used to grow from a golf ball to a basketball monthly, now has stalled completely.
No GFO running for months
Carbon ran 24/7 changed weekly
Never had a water change in the two years this tank has been up and running.
Reg IO salt

Dosing:
Alk 48ml daily ( 1 ml every 30 minutes )
Ca 48ml daily ( 2 ml every hour )
Kalk 1 gallon daily fast constant drip
ESV B-Ionic Transition Elements 4 ml at 1030 daily
Acropower 4 ml at 1530 daily

RO Regal 250 Skimmer runs 24/7
Kessil H380 over fuge runs 14 hours nightly ( 1 hour before DT lights out and 1 hour after they turn back on )
6 AI Sol Blue lights running:
Blue & Royal Blues start two hour ramp from 0 to 90% from 0800 to 1000
White 1 hour ramp up from 0 to 10% from 1000 to 1100
Whites ramp down 1800 to 1900 to zero
Blue & Royal Blues ramp down from 1900 to 2100 to zero
T5's all 4 are ATI Blue + ( 3 months old ) on from 1100 to 1800 then off.

Can't think of any other info that could be useful. But if there is please ask as I cannot figure out what's going on as everything else in the tank is looking awesome. SPS, LPS, softies all still looking good.

Small batch of Dino's stating to show it's ugly face by my zoa garden, small batch of cyano right under my 280 gyre.

62D61392-78FD-4EE0-89FE-54F38C68C967.jpeg
 

Flippers4pups

Fins up since 1993
View Badges
Joined
Jun 21, 2016
Messages
18,499
Reaction score
60,638
Location
Lake Saint Louis, Mo
Rating - 0%
0   0   0
Probably to fast of change for the nems to handle. Let the N03 Sit at 5ppm for now and don't worry about the P04 for now. Let's see if they can acclimate to the change so far.

P04 is most likely being soaked up by rocks and sand. I've used Seachem's flourish phosphorus before and it took some time (days) and multiple doses to get to 0.02. I was at zero before dosing.
 
OP
OP
Hitman

Hitman

Reefing One Day @ A Time!!!
View Badges
Joined
Jul 10, 2017
Messages
3,712
Reaction score
13,414
Location
NW Arkansas
Rating - 0%
0   0   0
Thank you Don! Hopefully I don't lose my nems I think those Blackwidows are the most expensive livestock in this tank.
 

sfin52

So many pedestrians so little time
View Badges
Joined
Jun 19, 2016
Messages
23,626
Reaction score
100,290
Location
Usa
Rating - 0%
0   0   0
Probably to fast of change for the nems to handle. Let the N03 Sit at 5ppm for now and don't worry about the P04 for now. Let's see if they can acclimate to the change so far.



P04 is most likely being soaked up by rocks and sand. I've used Seachem's flourish phosphorus before and it took some time (days) and multiple doses to get to 0.02. I was at zero before dosing.
Same experience
 

When to mix up fish meal: When was the last time you tried a different brand of food for your reef?

  • I regularly change the food that I feed to the tank.

    Votes: 22 28.9%
  • I occasionally change the food that I feed to the tank.

    Votes: 28 36.8%
  • I rarely change the food that I feed to the tank.

    Votes: 20 26.3%
  • I never change the food that I feed to the tank.

    Votes: 5 6.6%
  • Other.

    Votes: 1 1.3%
Back
Top