"Liquid GFO" dosing experience?

Triggreef · Mar 14, 2022

Curious if anyone is using or has used this product? First time I've come across it. In theory I guess it could work. They claim it is not LC but it sure does sound like what happens if you dose LC... If it is some form of iron, I'm a bit skeptic because I've had a lot of acro losses in the past while using heavy gfo and iron levels rising. Anyway this...

blaxsun · Mar 14, 2022

I used TLF Phos-Ban and it works slick. You don't need very much (diluted), and your phosphates drop noticeably within 24 hours.

Triggreef · Mar 14, 2022

EricR · Mar 14, 2022

Liquidised ferrous metal as a nutrient absorbent,,, interesting.
I know nothing so curious what experts say.

Triggreef · Mar 14, 2022

EricR said:
Liquidised ferrous metal as a nutrient absorbent,,, interesting.
I know nothing so curious what experts say.

Been searching it since I posted this but seems to be very little info. The company is saying their product has been in use 15 years. Not very many users for that kind of time.

I'm wondering if it is just Lanthanum Chloride being falsely advertised as something it is not. Very intriguing though.

J1a · Mar 14, 2022

Ferric oxide is insoluble in alkaline environment. So I don't really see how one can pack meaningful amount of GFO in a solution.

Triggreef · Mar 14, 2022

EricR said:
Liquidised ferrous metal as a nutrient absorbent,,, interesting.
I know nothing so curious what experts say.

J1a said:
Ferric oxide is insoluble in alkaline environment. So I don't really see how one can pack meaningful amount of GFO in a solution.

Makes sense. I also just noticed that the link in the ad goes to an Australian website. So most likely this is a scam. If it seems too easy it probably is!!

Randy Holmes-Farley · Mar 15, 2022

Some people dose soluble iron to control phosphate.

As far as I know, it's part of Glennf's DSR system.

Randy Holmes-Farley · Mar 15, 2022

Dosing Iron to reduce Phosphates?

Just wanted to start discussion here after passing thru GlennF's thread for DSR method where he suggest dosing Iron to reduce PO4 in tank water. http://dsrreefing.nl/phosphate.html And I did fast and not really accurate test - put one drop of phosphate solution in two vials with tank water and...

www.reef2reef.com

Spare time · Mar 15, 2022

Randy Holmes-Farley said:
Dosing Iron to reduce Phosphates?

Just wanted to start discussion here after passing thru GlennF's thread for DSR method where he suggest dosing Iron to reduce PO4 in tank water. http://dsrreefing.nl/phosphate.html And I did fast and not really accurate test - put one drop of phosphate solution in two vials with tank water and...

www.reef2reef.com

Is there any danger to have iron at 1ppm or similar? That seems a bit high

Randy Holmes-Farley · Mar 15, 2022

Spare time said:
Is there any danger to have iron at 1ppm or similar? That seems a bit high

I think one has to look at the experience of reefers to answer that, but I don't think it will be stable at high levels. It will precipitate as iron oxide, iron phosphate, etc.

J1a · Mar 15, 2022

Randy Holmes-Farley said:
Some people dose soluble iron to control phosphate.

As far as I know, it's part of Glennf's DSR system.

Wouldn't the precipitated iron (phosphate) still vulnerable to bacteria scavaging. When this happens, will phosphate becomes available in the aqueous phase again?

Randy Holmes-Farley · Mar 15, 2022

J1a said:
Wouldn't the precipitated iron (phosphate) still vulnerable to bacteria scavaging. When this happens, will phosphate becomes available in the aqueous phase again?

I do not know how fast bacteria can dissolve iron phosphate, but if the iron additions are ongoing, as opposed to a one time use, then any complete release is no different than phosphate from foods, but likely much lower in concentration.