Dosing Lanthanum Chloride to reduce PO4

[xenon]

There seems to be plenty of "Lanthanum Chloride" products available but from my research, Seaklear was the preferred brand.

10 micron filter socks would need to be brought it from the U.S. but they are not hard to find.

I was just hoping others in Canada had some experience with it.

Recharging GFO is not something I am interested in doing but I appreciate the suggestion.