Dosing phosphate? What are you using?

[3000kelvin]

What can I use to dose Phosphate? Anything available on Amazon?

 

[Evil1]

Brightwell Aquatics Magnesion - Liquid Magnesium Worked well for me. However, I recently started using TM All for Reef one step so far parameters spot on.​

 

[Randy Holmes-Farley Verified Community Expert]

I recommend food grade sodium or potassium phosphate from amazon.

Use this calculator and the entry for phosphate from potassium phosphate (with either one):

http://www.theplantedtank.co.uk/calculator.htm
Here's one:

Amazon product ASIN B00ILIO85Q

 

[Randy Holmes-Farley Verified Community Expert]

Brightwell Aquatics Magnesion - Liquid Magnesium Worked well for me. However, I recently started using TM All for Reef one step so far parameters spot on.​

He is asking about phosphate. :)

 

[exnisstech]

I recommend food grade sodium or potassium phosphate from amazon.

Use this calculator and the entry for phosphate from potassium phosphate (with either one):

http://www.theplantedtank.co.uk/calculator.htm
Here's one:

Amazon product ASIN B00ILIO85Q

This what I use as well. It's a few dollars cheaper directly from Loudwolf as there isn't a shipping charge. It also ships faster and you don't have to donate the Bezo's space project ;)

 

[SnownSky]

I recommend food grade sodium or potassium phosphate from amazon.

Use this calculator and the entry for phosphate from potassium phosphate (with either one):

http://www.theplantedtank.co.uk/calculator.htm
Here's one:

Amazon product ASIN B00ILIO85Q

Thank you as always, Dr.

I ordered this for my 100gal setup currently at ~0 PO4. Just to make sure I understand this, the calculator shows 100 gal w/1 gram of powder added to 50ml H20 will raise PO4 to .04. This seems like a crazy dilution using 1/113th of the bottle's contents.

Can anyone with experience share their technique? Are their guidelines on how quickly to raise phosphates?

Thanks all.

In case it matters:
pH: 8.2
Alk 9.0
Calc 410
Mag 1200
Nitrate 9

Dosing A4Reef daily.

 

[pennied]

Neophos

 

[backbayreef]

Stupid question: instead of dosing more PO4, how about exporting less? That is - if you’re using a GFO reactor, just turn it off?

 

[Randy Holmes-Farley Verified Community Expert]

Thank you as always, Dr.

I ordered this for my 100gal setup currently at ~0 PO4. Just to make sure I understand this, the calculator shows 100 gal w/1 gram of powder added to 50ml H20 will raise PO4 to .04. This seems like a crazy dilution using 1/113th of the bottle's contents.

Can anyone with experience share their technique? Are their guidelines on how quickly to raise phosphates?

Thanks all.

In case it matters:
pH: 8.2
Alk 9.0
Calc 410
Mag 1200
Nitrate 9

Dosing A4Reef daily.

I cannot tell which product you are referring to, but Just to put it in perspective, a 100 gram bottle of anhydrous trisodium phosphate (which contains 58 grams = 58,000 mg of phosphate) can raise a million liters of seawater by 0.06 ppm. So yes, expect very low amounts dosed.

 

[SnownSky]

I cannot tell which product you are referring to, but Just to put it in perspective, a 100 gram bottle of anhydrous trisodium phosphate (which contains 58 grams = 58,000 mg of phosphate) can raise a million liters of seawater by 0.06 ppm. So yes, expect very low amounts dosed.

The Loudwolf tridosium phosphate. Thank you for confirming my math.

 

[Randy Holmes-Farley Verified Community Expert]

The Loudwolf tridosium phosphate. Thank you for confirming my math.

Yes, your math is correct.

I'd add 0.02 or 0.03 ppm each day for a few days and see if it rises. It may not, and doses may need to be higher.

 

[SnownSky]

1/4tsp in 65ml H2O got the ball rolling. Thank you! Learning has occurred.

 

[Randy Holmes-Farley Verified Community Expert]

Great, keep us updated!