Triton ICP Test Results... Anything concerning?

[pluikens]

Hey @Randy Holmes-Farley and group,

I set up my first saltwater tank last 8 months ago (Build Thread: https://www.reef2reef.com/threads/40-gallon-mixed-reef-first-time-reefer.326489/) and just got the results back from my first Triton ICP test. Overall, things look really good. I'm fine to just keep doing what I'm doing, but I wanted to get some opinions on the results. Triton flagged a few elements of concern that I'm open to correcting but I just want to make sure that I should correct them before adjusting what I'm doing today. Full PDF attached but elements of concern below:

K (Potassium): Analysis - 349 mg/l Setpoint - 400 mg/l
Li (Lithium): Analysis - 270 µg/l Setpoint - 200 µg/l
I (Iodine): Analysis - 5.162 µg/l Setpoint - 60 µg/l
Si (Silicon): Analysis - 531 µg/l Setpoint - 100 µg/l

Potassium - I may dose potassium chloride. I believe 5g or 0.5oz of Potassium Chloride (KCl) will be needed.
Lithium - Not concerned about this. I'm actually happy this is as low as it is based on others test results. I've used hw-Marinemix Reefer salt since I started and I haven't seen a need to change.
Iodine - I've read some of Randy's articles on Iodine and I don't think I'll dose iodine unless there are compelling reasons to do so. I'm assuming chaeto in my refugium on an 18-hour photoperiod is consuming a fair bit of iodine (along with other consumers of iodine).
Silicon - Not sure where this is coming from. I've used a 6 stage BRS RO/DI system since I started my tank and have had 0 TDS all but one WC when it got to 2 TDS and I changed out DI resin.

Thoughts?!

 

[Randy Holmes-Farley Verified Community Expert]

I'd boost the potassium, ignore the lithium, ignore the silicon if you do not have an active diatom problem, and consider dosing iodide as an experiment.

 

[pluikens]

I'd boost the potassium, ignore the lithium, ignore the silicon if you do not have an active diatom problem, and consider dosing iodide as an experiment.

Thanks! That's just what I was thinking. I used http://www.ultimatereef.net/pages/pot_supplement/ to find that I need 15g of Potassium Chloride to raise my 40 gallons from 349 to 400 mg/l. I plan to use https://www.iherb.com/pr/Now-Foods-Potassium-Chloride-Powder-8-oz-227-g/777 for dosing. I believe you've recommended it before. Do I just use 15 mg of this powder? Is K something regularly consumed that I'll need to dose on an ongoing basis? Without confirmation, I was just going to dose once to get to 400 and then wait the three months for my next ICP to see if it dropped back down.
As for Iodine, I think I'll buy the Triton Trace Base Iodine and dose per their recommendations since the $32 bottle will last me over a year. Is there something else you recommend instead that's close to pure and can be dosed regularly? What were you using before you quit dosing? Thanks again!

 

[Randy Holmes-Farley Verified Community Expert]

I'd boost potassium to NSW levels, then wait and see what happens till the next test period. It never depleted in my tank.

I dosed sodium iodide (then, experimentally, sodium iodate). I expect the Triton product is a good choice.

 

[pluikens]

I got my potassium chloride today so I dosed 7.7222 g potassium to reach 400 mg/L. I've been dosing the Triton Iodine according to the Triton recommendation so I'm anxious to see if I notice any difference in my corals now that all results (except for Li and Si) are in line with sea water according to Triton.