my problem source of zinc, sulfur, magnesium and lithium?

[salty joe]

I wondered if the fertilizer I use for phytoplankton was polluting my tank so I added two drops of F/2 to the tube of RO/DI water. I add 1.1 mL of F/2 to each bottle of phyto when I harvest, so I indirectly add 1.1 mL of F/2 to the tank every day when I dose phyto.

These results are from ATI.

This is my RO/DI water that I added two drops of Micro Algae Grow, F/2 to.



Li
Lithium
2.76 µg/l
Ideal value: 0.00 µg/l
CRITICALLY HIGH
Critical

Zn
Zinc
42.54 µg/l
Ideal value: 0.00 µg/l
CRITICALLY HIGH
Critical

Mg
Magnesium
1405 mg/l
Ideal value: 1230 mg/l
ABOVE NORMAL
Attention

S
Sulfur
1039 mg/l
Ideal value: 851.0 mg/l
CRITICALLY HIGH
Critical


These are from aquarium water.

Li
Lithium
576.5 µg/l
Ideal value: 159.0 µg/l
ABOVE NORMAL
Attention

Zn
Zinc
11.22 µg/l
Ideal value: 1.87 µg/l
CRITICALLY HIGH
Critical

Mg
Magnesium
1405 mg/l
Ideal value: 1230 mg/l
ABOVE NORMAL

S
Sulfur
1039 mg/l
Ideal value: 851.0 mg/l
CRITICALLY HIGH

 

[salty joe]

I'm sorry, please disregard sulfur and magnesium. Too late to change...

 

[Randy Holmes-Farley]

I do not think the lithium is a concern. It probably comes in the salt mix and other additives.

The zinc is unlikely an issue but I’d look around to be sure there are no metal parts in the water.

 

[salty joe]

Thank you!

 

[Randy Holmes-Farley]

You’re welcome.

Happy Reefing!