ATI - ICP results, chasing numbers, and lack of sleep

[JoeBart]

I'm failing at wrapping my head around a few of these numbers (I'm blaming lack of sleep) and could use some guidance.
• I'm concerned about the iron levels and will look through my gear, etc. for a possible source. How big of a concern are these numbers?
• Zinc is present in my RODI water - 4 stage + extra DI stage and seems excessive in the system.
Is there a way to reduce iron and Zinc through chemical/mechanical filtration - I run auto water change at a gallon per day.
• My Hanna HI736 measures the 0.32 mg/l Phosphate almost spot on. What is the 104.1 µg/l of Phosphorus telling me?

Overall - LPS/Soft Corals are doing well. SPS are hit or miss for me and I'm working on dialing in flow/lighting. I can NOT grow chaeto in my fuge to save my life. Algae as a whole is not a problem (other than a small patch of Bryopsis I fight with regularly... we're at a stalemate).

other notes: I stopped dosing ChaetoGrō about 7 days before sending in this test.

160 gallon system = DT + Frag + shared sump | running just under 2 years | TMP Salt | ESV B-Ionic 2 part |

Iron	67.29 µg/l	0.51 µg/l	+66.78 µg/l		View
Zinc	72.17 µg/l	2.02 µg/l	+70.14 µg/l		View
Nutrients
Nitrate	23.43 mg/l	2.00 mg/l	+21.43 mg/l		View
Phosphorus	104.1 µg/l	15.17 µg/l	+88.90 µg/l		View
Phosphate	0.32 mg/l	0.05 mg/l	+0.27 mg/l		View

Ro/Di Water

Zinc

9.17 µg/l

0 µg/l

+9.17 µg/l

I appreciate you all looking at this and sharing your knowledge. I went down the rabbit hole of trying to find the answers and was overwhelmed by the volume of information available.
Thanks,
-jb

 

[Randy Holmes-Farley]

The iron is no concern. Some folks intentionally push it higher than you have.

The zinc might be a concern. Any metal parts in the water? I would not be convinced the zinc in the ro/di is the source, but check there for metal parts too. Hose clamps, screws, etc,

 

[JoeBart]

The iron is no concern. Some folks intentionally push it higher than you have.

The zinc might be a concern. Any metal parts in the water? I would not be convinced the zinc in the ro/di is the source, but check there for metal parts too. Hose clamps, screws, etc,

Thank you, Randy! Any wisdom to share about the Phosphate .vs Phosphorus numbers? Should I be concerned about how high the Phosphorus appears in the result? I'm not sure I fully understand the distinction.

 

[Uncle99]

I'm failing at wrapping my head around a few of these numbers (I'm blaming lack of sleep) and could use some guidance.
• I'm concerned about the iron levels and will look through my gear, etc. for a possible source. How big of a concern are these numbers?
• Zinc is present in my RODI water - 4 stage + extra DI stage and seems excessive in the system.
Is there a way to reduce iron and Zinc through chemical/mechanical filtration - I run auto water change at a gallon per day.
• My Hanna HI736 measures the 0.32 mg/l Phosphate almost spot on. What is the 104.1 µg/l of Phosphorus telling me?

Overall - LPS/Soft Corals are doing well. SPS are hit or miss for me and I'm working on dialing in flow/lighting. I can NOT grow chaeto in my fuge to save my life. Algae as a whole is not a problem (other than a small patch of Bryopsis I fight with regularly... we're at a stalemate).

other notes: I stopped dosing ChaetoGrō about 7 days before sending in this test.

160 gallon system = DT + Frag + shared sump | running just under 2 years | TMP Salt | ESV B-Ionic 2 part |

Iron	67.29 µg/l	0.51 µg/l	+66.78 µg/l		View
Zinc	72.17 µg/l	2.02 µg/l	+70.14 µg/l		View
Nutrients
Nitrate	23.43 mg/l	2.00 mg/l	+21.43 mg/l		View
Phosphorus	104.1 µg/l	15.17 µg/l	+88.90 µg/l		View
Phosphate	0.32 mg/l	0.05 mg/l	+0.27 mg/l		View

Ro/Di Water

Zinc

9.17 µg/l

0 µg/l

+9.17 µg/l

I appreciate you all looking at this and sharing your knowledge. I went down the rabbit hole of trying to find the answers and was overwhelmed by the volume of information available.
Thanks,
-jb

I was thinking phosphate is a bit on the higher side @ .32mg/l which may fuel some pest stuff in newer or low load tanks.

Maybe 0.05 to .1 mg/l would be a better target, unless your more than a year and run a high coral load and/or fuge.

 

[JoeBart]

Thank you, Randy! Any wisdom to share about the Phosphate .vs Phosphorus numbers? Should I be concerned about how high the Phosphorus appears in the result? I'm not sure I fully understand the distinction.

I was thinking phosphate is a bit on the higher side @ .32mg/l which may fuel some pest stuff in newer or low load tanks.

Maybe 0.05 to .1 mg/l would be a better target, unless your more than a year and run a high coral load and/or fuge.

Yes sir, This system is just shy of the 2-year mark, has a fuge, and a fairly large bio load.

 

[Randy Holmes-Farley]

Thank you, Randy! Any wisdom to share about the Phosphate .vs Phosphorus numbers? Should I be concerned about how high the Phosphorus appears in the result? I'm not sure I fully understand the distinction.

The phosphorus and phosphate numbers are just mathematical conversions from one another, I think, and are a tad high but not a big issue.