GFO/Rowaphos Usage

[Coolcasino]

For those who use this, do you run it 24/7 or only when needed?

 

[blaxsun]

24/7, but I prefer Nyos Phosi-Ex.

 

[Coolcasino]

How big is your tank? How much do you use? Where do you keep you po4 at?

 

[Randy Holmes-Farley Verified Community Expert]

I used GFO 24/7.

 

[Coolcasino]

I used GFO 24/7.

Do you prefer GFO over Rowa?

 

[Reef.]

Do you prefer GFO over Rowa?

Same thing, just think of Rowa as coke and GFO as a generic cola.

 

[Coolcasino]

They look so different and prices are different. Maybe just marketing.

 

[Reef.]

What size tank is it for and how are you planning on using it, in a reactor or just in a media bag?

 

[Spare time]

I just toss a tiny bag of gfo in if I overdose phosphates or if they are elevated and nitrate is still barely detectable (such as when I added spirulina powder daily. Then I just take the bag out after a day or so as it only takes a tiny amount of time to drop back down to where I like.

 

[Coolcasino]

I'm going to use it in a BRS reactor. I'm currently slowly dropping my PO4 with Phosphat-e. My Hanna could not read my PO4 as it was so high. Last week it finally started to show readings and today its reading 0.35. I'm planning to go down a bit more and then try to maintain it with 1 of the medias.

 

[blaxsun]

How big is your tank? How much do you use? Where do you keep you po4 at?

My system is 200 gallons. I use about 500ml every 2-3 months. Phosphates are between 0.010-0.025.

 

[Coolcasino]

I just toss a tiny bag of gfo in if I overdose phosphates or if they are elevated and nitrate is still barely detectable (such as when I added spirulina powder daily. Then I just take the bag out after a day or so as it only takes a tiny amount of time to drop back down to where I like.

Maybe that will be my end game but I have big eaters in my tank. I don't know if passively using any of the medias will help me.

 

[polyppal]

I used GFO 24/7.

Same

 

[Coolcasino]

My system is 200 gallons. I use about 500ml every 2-3 months. Phosphates are between 0.010-0.025.

Wow! it lasts that long? I thought it depleted pretty quickly.

 

[Coolcasino]

What size tank is it for and how are you planning on using it, in a reactor or just in a media bag?

Its a 125. Mixed reef.

 

[blaxsun]

Wow! it lasts that long? I thought it depleted pretty quickly.

Depends on your system. I should probably be replacing it a bit more frequently, but I don't. But I do leave it in at least 60 days.

As I indicated, I prefer Nyos Phosi-Ex. It's not as fine or dirty as Rowaphos, so almost nothing ends up in the sump.

 

[Coolcasino]

I guess if the PO4 is where you want it then no need to change it.

 

[blaxsun]

I guess if the PO4 is where you want it then no need to change it.

Pretty much. I don't test religiously, but when I do it's always where I expect it to be for the most part.

 

[Reef.]

I guess if the PO4 is where you want it then no need to change it.

You can also check the water exiting from the reactor to check when it’s exhausted.

 

[Coolcasino]

Pretty much. I don't test religiously, but when I do it's always where I expect it to be for the most part.

Well I hope I get there soon. I still have a long way to go.