Aquaforest GFO problem

[EmptyWallet]

Hi folks,

Got my Hanna Checker phosphate LR yesterday and did some tests. In short I found that phosphate minus roughly halves your phosphate levels when measured coming out of the reactor. At full dosage (1l of media in my case for 1000 litres) I went from 1 ppm to 0.75 overnight and exhausted the media. Then 0.75 to 0.25 on round 2 in a few days. Then 0.25 to 0.10 on round 3 in a few days. With the Hanna I got 0.09 from the tank water and 0.06 from the reactor outlet after replacing the media - a 33% reduction. Bare in mind a 0.04 accuracy factor on Hanna LR. So in 4 full doses of the media, over 2 weeks, I expect it will drop my Phosphate from 1 ppm to 0.00 which I consider to be pretty good!

 

[SewerynAquaforest]

Hi folks,

Got my Hanna Checker phosphate LR yesterday and did some tests. In short I found that phosphate minus roughly halves your phosphate levels when measured coming out of the reactor. At full dosage (1l of media in my case for 1000 litres) I went from 1 ppm to 0.75 overnight and exhausted the media. Then 0.75 to 0.25 on round 2 in a few days. Then 0.25 to 0.10 on round 3 in a few days. With the Hanna I got 0.09 from the tank water and 0.06 from the reactor outlet after replacing the media - a 33% reduction. Bare in mind a 0.04 accuracy factor on Hanna LR. So in 4 full doses of the media, over 2 weeks, I expect it will drop my Phosphate from 1 ppm to 0.00 which I consider to be pretty good!

Thank You for sharing your experience. Aquaforest Phosphate Minus is a very effective absorber and it's better to add less of PM and change often (first week 0.4 liter , next 0.4 ... etc) if you have very high phosphate (like it was in your case). All drastic changes are dangerous for corals (generally all life). If you don't have animals it's ok but corals could have stress if your phosphate was changed from 1 to 0.00 in few days.
Stability is the key in our hobby. If we should change something (even for better) please remember to do it slowly.

 

[EmptyWallet]

My tank only has a shoal of chromis and cycled dry rock, but thanks for calling that out in case future readers are unaware

 

[EmptyWallet]

You've got me thinking now, is it safe to move fish from a QT (therapetic copper, 1 pm phosphate, 20ppm nitrate) to the display which is basically zero in all 3? I assume in the case of poison (copper) and pollutants (phos and nitrate) talking fish only it' ok for sudden drops?

 

[xneutron]

we need some updates people post your parameters/regimen and I'm glad the thread still open, I have 1 week running an Aquaforest media reactor and a little bit of carbon mix with phosphate minus 1/4th the recommended dose, I did rinse the GFO 3 times on a net with tank water so far my phosphates are undetectable. hopefully, It will cut down on the algae problem. I installed the reactor near the sock and skimmer section of the sump. I notice some microbubbles on the reactor! is that good or bad? where would you guys recommend the reactor go? At first, my skimmer will not make any foam and after a week the skimmer collected some of that rusty colored stuff. I'm assuming that's how it works. after 1 week I changed the output of the reactor to go on the next baffle the refugium.

 

[xneutron]

just to make sure my LFS said that I can use grams instead of milliliters so a full dose would be 100 grams for 27 US Gallons is that correct?

 

[Vu337]

I just use some in my reactor and the next day my orange passion is losing flesh from the bottom going upwards. So disappointed because it was growing so well.