High lanathum per Triton, only GFO from now on?

csb123 · Nov 29, 2017

I’m using the Triton “other methods”.

My most recent test shows that lanathum has accumulated into the orange zone.

Am I stuck to just using GFO, my skimmer, and my chaeto to combating phosphates?

jsker · Nov 29, 2017

csb123 said:
I’m using the Triton “other methods”.

My most recent test shows that lanathum has accumulated into the orange zone.

Am I stuck to just using GFO, my skimmer, and my chaeto to combating phosphates?

Carbon will get it out.

csb123 · Nov 29, 2017

I assume the compound is lanathum phosphate, which I would think wouldn’t be absorbed by activated carbon. But, I could certainly be wrong.

Are there others with experience in this?

Randy Holmes-Farley · Nov 30, 2017

What is in the water is likely lanthanum ion, which is what you are dosing (assuming you are).

The precipitated lanthanum carbonate and lanthanum phosphate presumably precipitates out as a solid.

I do not know what levels of lanthanum become a concern in a reef aquarium.

csb123 · Nov 30, 2017

Randy Holmes-Farley said:
What is in the water is likely lanthanum ion, which is what you are dosing (assuming you are).

The precipitated lanthanum carbonate and lanthanum phosphate presumably precipitates out as a solid.

I do not know what levels of lanthanum become a concern in a reef aquarium.

Thanks for chiming in Randy! Your insight is always greatly appreciated.

It is odd to me that my lanathum ion is elevated, as I have always had detectable phosphates (0.03-0.12 on the Hanna ULR checker.)

Randy Holmes-Farley · Nov 30, 2017

csb123 said:
Thanks for chiming in Randy! Your insight is always greatly appreciated.

It is odd to me that my lanathum ion is elevated, as I have always had detectable phosphates (0.03-0.12 on the Hanna ULR checker.)

Are you dosing lanthanum? I wouldn't assume that all lanthanum will precipitate just because there is some phosphate.