ICP test result help

[ud56]

Did a test day before water change and is showing sulfur extremely low that they said to dose 241.6 ml over 9 days. Fluoride very low,bromine very low and a few others. So for the heck of it I sent a test in of a freshly made batch of salt water,Fritz blue box,and the results came back sulfur extremely low,almost the same reading,bromine low,flouride,iodine and a few more. Don’t know if I should dose what they recommend or just switch to a better salt. Alk,ca,mg we’re all ok. Thank you for any thoughts.

 

[Fish Fan]

Interesting! Could you post the results of your ICP and then we could see if @Randy Holmes-Farley has a minute to take a look for you?

 

[ud56]

Interesting! Could you post the results of your ICP and then we could see if @Randy Holmes-Farley has a minute to take a look for you?

Interesting! Could you post the results of your ICP and then we could see if @Randy Holmes-Farley has a minute to take a look for you?

Not sure how to do that. Im technologically challenged. I can email them to you

 

[Reginald Reefer III]

You can reply with a file attachment on this thread of the downloaded PDF from whatever company did your ICP.

 

[ud56]

You can reply with a file attachment on this thread of the downloaded PDF from whatever company did your ICP.

Methodology: ICP-OES, photometric and electrochemical methods specific for seawater. Further methods possible via upgrades.
Recommended values are optimized for coral reef aquariums.
Sample ID: 20891510 Ion balance of the analysis
Analysis ID: 324065
-5 %
+5 %
Booked upgrades: non
-8 %
+8 %
Sampling Point: 25g lagoon 2,1 %
Volume in Liters: 95 Slight cation excess / anion deficiency
Sampling Date: 08-31-2026 Plausibility check of measured values passed
Sample Arrival: 09-07-2026
To the dosing and action recommendations
PHYSICAL-CHEMICAL BASIC VALUES
measured Reference Range
Electrical Conductivity (mS/cm 25 C)°
53,8 51,7 - 53,0 - 54,5
Density (kg/Liter, calculated 25 C)°
1,0237 1,022 - 1,023 - 1,024
Relative Density (calculated 25 C)°
1,0268 1,026- 1,027
Salinity (psu, calculated)
35,5 34 - 35 - 36
pH Value 7,92 7,9 - 8,3 - 8,4
Alkalinity ( dKH)°
8,2 6,5 - 7,3 - 8,5
CO2 Content (mg/l)
1,12 0,04- 2,5
Alkalinity pH 4.3 (mmol/L)
2,93 2,3 - 2,58 - 3,0
Smell none none
Color colorless colorless
MACROELEMENTS, CALCIUM BALANCE ELEMENTS AND HALOGENS in mg/Liter
measured Reference Range rel. 35 psu
Sodium Na 11207 9500- 10700 -11500 11046
Sulfur S 740 850 - 900 - 950 729
Sulfate 2217 2550 - 2700 - 2850 2185
SO42-
Potassium K 434 380 - 395 - 420 428
Boron B 6,41 3,8 - 4,5 - 5,5 6,32
Magnesium Mg 1385 1200 - 1350 - 1450 1365
Calcium Ca 413 400 - 425 - 440 407
Strontium Sr 10,3 6,5 - 8,0 - 9,0 10,15
Cl-
Chloride 19780 18700- 19500 -20300 19496
Bromine (total bromine, ICP-OES)
Br 46,4 55 - 67 - 75 45,7
F-
Fluoride 0,13 0,9 - 1,3 - 1,6 0,13
Iodine (Total Iodine, ICP-OES)
I 0,041 0,055 - 0,065 - 0,080 0,041
1 / 5
RELATION VALUES OF MACROELEMENTS AND HALOGENS
measured Reference Range
Salinity Meas. : Target Value Sal. 1,01 0,97 - 1,00 - 1,03
KH Measurement : Target Value KH 1,13 0,90 - 1,00 - 1,17
Magnesium : Salinity Mg 39 33,3 - 38,6 - 42,6
Calcium : Salinity Ca 11,6 11,1 - 12,1 - 12,9
Strontium: Salinity Sr 0,29 0,18 - 0,23 - 0,26
Potassium : Salinity K 12,2 10,6 - 11,3 - 12,4
Boron : Salinity B 0,18 0,11 - 0,13 - 0,16
Cl-
Chloride : Salinity 557 519 - 557 - 597
SO4
2-
Sulfate : Salinity 62,4 71 - 77 - 84
Chloride : Sulfate 8,92 6,6 - 7,2 - 8,0
Cl-/SO4
2-
Magnesium : Calcium Mg/Ca 3,35 2,7 - 3,2 - 3,6
Calcium : Strontium Ca/Sr 40,1 44 - 53 - 68
Bromine : Fluoride 356,9 34 - 52 - 83
Br-/F-
Fluoride : Iodine 3,1 11 - 20 - 29
F-/I
Sal. KH Mg Ca Sr K
Ideal Line
Relation Values
Fluoride : Sulfur : Strontium FSS 68,8 80 - 100 - 120
MACRO NUTRIENTS in mg/Liter
measured Reference Range
NO3-
Nitrate 0,6 1- 10
NO2-
Nitrite n.d. n.d.- 0,15
Phosphorus (ICP-OES)
P 0,002 0,006- 0,060
Total Phosphate (calculated) PO43-
tot.
0,006 0,02- 0,18
ortho-Phosphate (photometric) PO43-
0,006 0,02- 0,10
NO3 PO4-tot. PO4
Silicon Si 0,24 0,1- 0,2
Ideal Line
Silicate (calculated) SiO2
0,52 0,2- 0,4
Measurement Values
ORGANIC FACTORS
measured Reference Range
NO3
-/PO43-
Nitrate : ortho-Phosphate 93,33 90- 110
PO43-
tot./PO43-
Total Phosphate : ortho-Phosphate 1 1,00
PO43-/I
Total Phosphate : Iodine 0,15 0,13- 1,67
SAK254 (m-1)
not measured only with SAK254 upgrade
NPOC (mg/l)
C not measured only with organic upgrade
TNb (mg/l)
N not measured only with organic upgrade
2 / 5
Dynamic Elements in µg/Liter
measured Reference Range
Zinc Zn 4,53 3 - 5,5 - 8
Vanadium V n.d. 2 - 6 - 10
Copper Cu n.d. 2 - 4 - 6
Nickel Ni 3,36 3 - 4,5 - 6
Molybdenum Mo 24,5 10 - 15 - 20
PHYSIOLOGICALLY RELEVANT TRACE ELEMENTS in µg/Liter
measured Reference Range
Barium Ba 35,8 5 50
- max.
Cobalt Co n.d. n.d. 1,9
- max.
Chromium Cr n.d. n.d. 2,3
- max.
Iron Fe n.d. n.d. 2,5
- max.
Lithium Li 64 180 350
- max.
Manganese Mn 61,7 n.d. 0,25
- max.
Selenium Se n.d. n.d. 2,0
- max.
only with ICP-MS upgrade:
Rubidium Rb not measured
OTHER TRACE ELEMENTS AND POTENTIAL POLLUTANTS in µg/Liter
measured Reference Range
Aluminum Al 1,5 5- 30
Antimony Sb n.d. n.d. 10
- max.
Arsenic As n.d. n.d.
Beryllium Be n.d. n.d.
Lead Pb n.d. n.d.
Cadmium Cd n.d. n.d.
Lanthanum La n.d. 2- 10
Mercury Hg n.d. n.d.
Silver Ag n.d. n.d. 10
- max.
Titanium Ti n.d. n.d.- 3,5
Tungsten W n.d. n.d. 30
- max.
Tin Sn n.d. n.d. 10
- max.
Zirconium Zr n.d. n.d.- 2,2
only with ICP-MS upgrade:
Cesium Cs not measured
Gallium Ga not measured
Hafnium Hf not measured
Neodymium Nd not measured
Tellurium Te not measured
Thorium Th not measured
Thallium Tl not measured
Uranium U not measured
Zn V Cu Ni Mo
Ideal Line
Measurem

 

[Reginald Reefer III]

Eh - from what I can gather from your post and the ICP, the Fritz Salt is probably your sulfur issue. If it was me, I wouldn't be chasing that problem as it's not terribly important. Move to a better salt would be my move.

Your manganese is also showing as VERY high - as in was this ICP from the fresh salt mix? I wouldn't just start dosing anything without a proven method and measurement to move towards. Are you going to use Triton? Reef Moonshiners? You can't just dose without knowing what amount and what to shoot for.

If you stick with only water changes, trace elements will tend to drift over time.

 

[ud56]

Eh - from what I can gather from your post and the ICP, the Fritz Salt is probably your sulfur issue. If it was me, I wouldn't be chasing that problem as it's not terribly important. Move to a better salt would be my move.

Your manganese is also showing as VERY high - as in was this ICP from the fresh salt mix? I wouldn't just start dosing anything without a proven method and measurement to move towards. Are you going to use Triton? Reef Moonshiners? You can't just dose without knowing what amount and what to shoot for.

If you stick with only water changes, trace elements will tend to drift over time.

I was going to dose what they recommended or I was thinking of switching to tropic Marin salt and all for reef

 

[Reginald Reefer III]

I was going to dose what they recommended or I was thinking of switching to tropic Marin salt and all for reef

Good plan! Whatever you choose, consistency is key.

 

[ud56]

You can reply with a file attachment on this thread of the downloaded PDF from whatever company did your ICP.

Good plan! Whatever you choose, consistency is key.

I have a lot of Fritz salt to use so maybe I’ll use that up and then switch. Thank you for taken the time to help

 

[BryanM]

I have a lot of Fritz salt to use so maybe I’ll use that up and then switch. Thank you for taken the time to help

Could also be coming from RODI water... That should be test as well from time to time.

 

[ud56]

Could also be coming from RODI water... That should be test as well from time to time.

I did have the Rodi water tested and it was fine