Ideas on quick phosphate control

[StirCrazy]

Originally Posted by hillegom

The way I understand the chemical reaction is that the Lanthium chloride combines with both calcium and phosphate to make a new compound that precipitates out and is supposed to be non dissolving after that. So the reaction depletes both calcium and phosphate
Mind you, I have never used it so cannot talk from experience.

everything I have read shows it just creates lanthanum phosphate – LaPO4

I am looking at this as an addition for cooking old live rock, but I don't know if it will draw phosphates out of the rock as every who has played with it says there phosphates start rising again when they stop dosing.

Steve