Phosphate E dosing question

[TodaysTrolling]

Quick question, I have 80 gallons of water volume. I would like to put Phosphate E on a doser but dilute it into 1L of water. If I wanted to dose around 10ML of the that into my tank to drop phosphates by about 0.05 per dose, What amount of Phosphate E would I mix into the 1L?

Have sat here for an hour trying to figure out how to math that but coming up blank. I figured that dosage would be an acceptable dose to bring my phosphates down slowly. My Hannah phosphate tester is showing it above 0.90. Just trying to find a way to set the lanthium up on a doser. But want it diluted down where if my doser isn't accurate exactly that a few MLs one way or the other wouldn't hurt anything. Sorry if this doesn't make a lot of sense!

 

[Randy Holmes-Farley Verified Community Expert]

If you know what amount is needed before dilution, then you can figure the daily diluted dose by multiplying that original number by the dilution.

But in general, instructions that claim a certain volume will reduce phosphate a certain amount end up being huge overestimates of the effect due to desorption of phosphate from rock and sand as you try to lower it.

 

[TodaysTrolling]

Would there be an easy way

If you know what amount is needed before dilution, then you can figure the daily diluted dose by multiplying that original number by the dilution.

But in general, instructions that claim a certain volume will reduce phosphate a certain amount end up being huge overestimates of the effect due to desorption of phosphate from rock and sand as you try to lower it.

Is there any easy way you can think of to find that out?

 

[Randy Holmes-Farley Verified Community Expert]

Would there be an easy way

Is there any easy way you can think of to find that out?

No. It depends on the surface area of exposed calcium carbonate surfaces.

You have to just dose and observe to use a method like this.