Where is Strontium coming from?

[PMorgan]

Hi all
My ATI results show high Strontium and Aluminum
Where could this be coming from I do not dose these elements.
About my tank
It was started Feb 2023
Total including sump 125 gallons
I feed frozen marine cuisine am a half shell clam am mysis pm
I use Versa pumps for the following
automatic water changes 1.25gl per day 24hr I use reef crystals
11.8ml vinegar per day 10am-4pm
10ml alk per day Randy Recipe 1 7pm-12am
10ml cal per day Randy Recipe Pedlow 1-6pm

I have a refugium, reef mat, skimmer, I run Seachem carbon in a reactor

I do have a marine pure block in the sump thinking of removing that
Any advice would be appreciated
TIA

 

[Randy Holmes-Farley]

I can’t open those on my phone. What strontium levels?

 

[PMorgan]

Hi all
My ATI results show high Strontium and Aluminum
Where could this be coming from I do not dose these elements.
About my tank
It was started Feb 2023
Total including sump 125 gallons
I feed frozen marine cuisine am a half shell clam am mysis pm
I use Versa pumps for the following
automatic water changes 1.25gl per day 24hr I use reef crystals
11.8ml vinegar per day 10am-4pm
10ml alk per day Randy Recipe 1 7pm-12am
10ml cal per day Randy Recipe Pedlow 1-6pm

I have a refugium, reef mat, skimmer, I run Seachem carbon in a reactor

I do have a marine pure block in the sump thinking of removing that
Any advice would be appreciated
TIA

11.36
I added screen shots of the results hopefully you can open those

 

[PMorgan]

I can’t open those on my phone. What strontium levels?

11.36

 

[Randy Holmes-Farley]

That’s probably from the salt mix or as a contaminant in calcium supplements. Some types of calcium chloride have quite a lot.

In any case, however, that level is not a concern, IMO.