High Vanadium: Sources?

[mfollen]

Hey reefers,

I’ve gotten some ICP results with high vanadium. 10ppb, upper limit is 5 ppb

Does anyone know what sources the vanadium can come from?

I already inspected pumps, nothing there. No black sand.
I do have the radion mounts in the water. Not sure if that can be it.

Does anyone know of vanadium specific sources for me to inspect?

Thank you!

 

[mfollen]

Can this be it?

If so thanks a lot ecotech

 

[mindme]

I've also been struggling with high amounts of it in my 180g. I can't figure out the source, so I'm following in case.

I will say based on your image, that looks like rust and could be a source of metals for sure. What metals would depend on what it's made of, which I have no clue.