Liquid Phosphate Remover Dosing Calculator

[Larry L]

I put together a calculator to help with dosing the right amount of some of the popular liquid phosphate removers that are based on lanthanum chloride (Blue Life™ Phosphate Rx™, Brightwell® Aquatics Phosphat-E, Two Little Fishies PhosBan®-L, and Acrylic Tank Manufacturing Agent Green™):

http://larryl.emailplus.org/fish/dosing-instructions-phosphate-removers.html

Hope you find it helpful.

 

[redfishbluefish]

Great calculator. Nicely done.

 

[SeaDweller]

Nice. You forgot agent green

 

[Larry L]

Nice. You forgot agent green

Thanks, I had not heard of Agent Green before. Do you know (or have a link to) dosing instructions? I'm having trouble finding any online.

 

[SeaDweller]

Thanks, I had not heard of Agent Green before. Do you know (or have a link to) dosing instructions? I'm having trouble finding any online.

It’s 1 ml per 10 gallons to remove 1ppm po4

 

[Dexter_SA]

Cant you put something together for diy lanthanium chloride? Maybe to mix stock solution and then how much to dose?

 

[Larry L]

Cant you put something together for diy lanthanium chloride? Maybe to mix stock solution and then how much to dose?

I don't use it myself, but if someone who does wants to share the instructions I could hook it up.

 

[SeaDweller]

Cant you put something together for diy lanthanium chloride? Maybe to mix stock solution and then how much to dose?

I give up. I keep on trying the math and always end up at 0.00276 ppm of PO4 removed in 1 ml/gallon and I’m I’m sure that’s not right.

 

[Larry L]

It’s 1 ml per 10 gallons to remove 1ppm po4

Thanks, I added Agent Green to the calculator.

 

[David S]

I put together a calculator to help with dosing the right amount of some of the popular liquid phosphate removers that are based on lanthanum chloride (Blue Life™ Phosphate Rx™, Brightwell® Aquatics Phosphat-E, and Two Little Fishies PhosBan®-L):

http://larryl.emailplus.org/fish/dosing-instructions-phosphate-removers.html

Hope you find it helpful.

Thanks for this calculator, Larry.
It makes it a lot easier to determine how much to dose moderate amounts (ie dosing for .1 PPM reduction instead of .5 PPM or higher).
I can see from your calculator where I previously od'd with Phosphate RX, causing my Yellow Tang some stress.

 

[Larry L]

It makes it a lot easier to determine how much to dose moderate amounts (ie dosing for .1 PPM reduction instead of .5 PPM or higher).

Thanks, glad you think so.

I can see from your calculator where I previously od'd with Phosphate RX, causing my Yellow Tang some stress.

Sorry to hear about your tang. That's the reason I started working on a calculator in the first place - it's easy to get the math wrong, and there's not a lot of room for error especially if you are dosing into a smallish tank or trying to remove only a little phosphate.

 

[David S]

Thanks, glad you think so.
Exactly


Sorry to hear about your tang. That's the reason I started working on a calculator in the first place - it's easy to get the math wrong, and there's not a lot of room for error especially if you are dosing into a smallish tank or trying to remove only a little phosphate.

 

[Dexter_SA]

i mix 15g Lanthanium chloride to 500ml rodi water. But in all honesty i have no clue how much to dose to achieve a certain goal. so i just thumb suck it and test. if phosphates are at the desired level i just stop to dose.

 

[Rich Klein]

Much appreciated!

 

[Randy Holmes-Farley Verified Community Expert]

How is the calculated dose determined? By assuming all lanthanum ends up as lanthanum phosphate?

I suspect that is what manufacturers do, and if so, it is likely an underestimate of the amount needed.

 

[Larry L]

How is the calculated dose determined? By assuming all lanthanum ends up as lanthanum phosphate?

I suspect that is what manufacturers do, and if so, it is likely an underestimate of the amount needed.

The calculations are based only on the manufacturer's dosing instructions. I agree those probably assume 100% efficiency and so are probably conservative, but I didn't want to be responsible for recommending something different than what the manufacturers recommend. I've seen lots of posts about people overstripping phosphates, so it might be better to be a bit on the conservative side anyway.

 

[Randy Holmes-Farley Verified Community Expert]

The calculations are based only on the manufacturer's dosing instructions. I agree those probably assume 100% efficiency and so are probably conservative, but I didn't want to be responsible for recommending something different than what the manufacturers recommend. I've seen lots of posts about people overstripping phosphates, so it might be better to be a bit on the conservative side anyway.

Sounds good.

 

[Isaac Alves]

Thank you for this. [emoji2]

 

[Butuz]

I put together a calculator to help with dosing the right amount of some of the popular liquid phosphate removers that are based on lanthanum chloride (Blue Life™ Phosphate Rx™, Brightwell® Aquatics Phosphat-E, Two Little Fishies PhosBan®-L, and Acrylic Tank Manufacturing Agent Green™):

http://larryl.emailplus.org/fish/dosing-instructions-phosphate-removers.html

Hope you find it helpful.

THHANK YOU! My head was spinning trying to calculate dosage to lower from 0.08 to 0.03 using Brightwell.

 

[Stigigemla]

I make a Lanthanum remover that I sell. I calculated the dose as Lanthanum Phosphate and in the tests I made it seems to fit with the Hanna ULR values. I have not sold many but the calculation seems to work for the customers too.
Never add more than that takes away half the phosphate value You have measured. Never use Lanthanum for values under 0,1 ppm phosphate.