Unwanted Heavy Metals - Salt Mix or MP Blocks?

[xLimitlessJR]

I did a Triton ICP test and found that i have several elements that are very high, which i will list below:

Aluminum - 38 ug/l
Lithium - 466 ug/l
Zinc - 5.85 ug/l
Cobalt - 1.034 ug/l
Iron - 2.838 ug/l
Barium - 74 ug/l

I then tested my source water and found that it is totally fine.

So my question is, is the most likely culprit of this a bad batch of Reef Crystals or a bad batch of Marine Pure blocks?

Regardless, i have stopped using the salt and will be removing the marine pure blocks today to retest, but just wanted some thoughts...

 

[Macdaddynick1]

Anything rusting in the tank?

 

[xLimitlessJR]

Nope triple checked every nook and cranny