What Kinds of P Sources do LC and GFO Bind?

[jda]

Does anybody happen to know what types of phosphates and other phosphorous sources that either GFO and LC bind?

The reason that I am asking is that people have had coral issues* using GFO, but not so much LC. I know that ortho binds to both. I have a theory that GFO might bind more types of phosphates, including metaphosphate and maybe even some organically bound phosphorous where as LC mostly/only binds orthophosphate. If this is right, then LC leaves other types behind for the corals to utilize and thus reduce stress?

I have tried to search the web for this and found almost nothing. I found a source in some other language that indicated that LC can bind to one end (?) of meta/poly and then it can break that bind and leaves the rest of the poly/meta behind. I have no idea if any of this is true, or not.

In any case, since there is no way for me to test this, I was was wondering anybody has a guess just based on the chemistry of things.

* I know about some fish issues with raw LC dosing and I am not talking about those.

 

[Randy Holmes-Farley]

GFO will be most effective at binding inorganic phosphate. Some organic forms will bind and some will not.

I expect lanthanum only effectively precipitates inorganic phosphate.

 

[Doctorgori]

GFO will be most effective at binding inorganic phosphate. Some organic forms will bind and some will not.

I expect lanthanum only effectively precipitates inorganic phosphate.

I feel so much better (less dumb) using both forms (LC & GFO) at the same time….so I will continue…
.thanks Randy

 

[Dan_P]

Does anybody happen to know what types of phosphates and other phosphorous sources that either GFO and LC bind?

The reason that I am asking is that people have had coral issues* using GFO, but not so much LC. I know that ortho binds to both. I have a theory that GFO might bind more types of phosphates, including metaphosphate and maybe even some organically bound phosphorous where as LC mostly/only binds orthophosphate. If this is right, then LC leaves other types behind for the corals to utilize and thus reduce stress?

I have tried to search the web for this and found almost nothing. I found a source in some other language that indicated that LC can bind to one end (?) of meta/poly and then it can break that bind and leaves the rest of the poly/meta behind. I have no idea if any of this is true, or not.

In any case, since there is no way for me to test this, I was was wondering anybody has a guess just based on the chemistry of things.

* I know about some fish issues with raw LC dosing and I am not talking about those.

GFO might be binding other ions and molecules important to coral, This would be most apparent for a regular user of GFO.

 

[Randy Holmes-Farley]

GFO might be binding other ions and molecules important to coral, This would be most apparent for a regular user of GFO.

Yes, I agree.

 

[Dennis Cartier]

I think I asked similar questions, and received some info in the thread below. Hope it helps.

NP-Bacto-Balance with active Phosphate removal

I am at the point where I will need to transition from Elim-NP to NP-Bacto-Balance in the near future. My current readings are 0.2 NO3, 0.22 PO4 and a N : P ratio of 1.50. I have read the other threads providing info on transitioning, but I want to explore doing it a slightly different way. I...

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