GFO or Phosgaurd?

Roland Jacques · 10/30/2007, 06:35 PM

Which pulls out more phosphates GFO or Phosgaurd? Dollar to dollar. it seems that phosguard is about 60% less money per vollume.

I just noticed that the directions on Phosgaurd says it get exhasted in about 4 days. im wondering if it works faster than GFO.

Has any one compared these?

bertoni · 10/30/2007, 06:59 PM

The PhosGuard contains aluminum, and so it's not recommended. It's cheaper per volume, but it's not clear that it's cheaper per gram of phosphate removed. GFO can stay in the system and work for a long time.

mobujen · 10/30/2007, 08:07 PM

I've been using phosguard for a couple of weeks now on recommendation from my LFS. I just read about the Aluminum issue with this product and was doing some research for a replacment. What is GFO and will it work in a media bag placed in a high flow area of my refugium?

Thanks,

Mike

bertoni · 10/30/2007, 08:13 PM

This article covers GFO products:

http://www.reefkeeping.com/issues/2004-11/rhf/index.php

They are usually run in a reactor or a canister filter. High flow isn't necessarily good, since it can cause the GFO media to break up.

Roland Jacques · 10/30/2007, 08:17 PM

Granular Ferric Oxide
Theirs a pelletize version that suppose to be better suited sump type placements

mobujen · 10/30/2007, 08:39 PM

Thanks guys! I'll do some research on that product.

bertoni · 10/30/2007, 08:50 PM

I've used Phosphate Killer, and that seems fine. Warner PhosAr HC has gotten very good reviews.

Billybeau1 · 10/31/2007, 12:43 AM

Quote:

Originally posted by bertoni
I've used Phosphate Killer, and that seems fine. Warner PhosAr HC has gotten very good reviews.

I've used the PhoSar HC and have not seen anything like it yet for phosphate removal.

Can be used in the sump, in a canister filter or fluidized reactor.

10/30/2007, 06:35 PM	#1
Roland Jacques Premium Member Join Date: Mar 2003 Location: Atlanta GA Posts: 2,863	GFO or Phosgaurd? Which pulls out more phosphates GFO or Phosgaurd? Dollar to dollar. it seems that phosguard is about 60% less money per vollume. I just noticed that the directions on Phosgaurd says it get exhasted in about 4 days. im wondering if it works faster than GFO. Has any one compared these? __________________ Roland

10/30/2007, 06:59 PM	#2
bertoni RC Mod Join Date: Mar 2002 Location: Mountain View, CA, USA Posts: 68,505	The PhosGuard contains aluminum, and so it's not recommended. It's cheaper per volume, but it's not clear that it's cheaper per gram of phosphate removed. GFO can stay in the system and work for a long time. __________________ Jonathan Bertoni

10/30/2007, 08:13 PM	#4
bertoni RC Mod Join Date: Mar 2002 Location: Mountain View, CA, USA Posts: 68,505	This article covers GFO products: http://www.reefkeeping.com/issues/2004-11/rhf/index.php They are usually run in a reactor or a canister filter. High flow isn't necessarily good, since it can cause the GFO media to break up. __________________ Jonathan Bertoni

10/30/2007, 08:17 PM	#5
Roland Jacques Premium Member Join Date: Mar 2003 Location: Atlanta GA Posts: 2,863	Granular Ferric Oxide Theirs a pelletize version that suppose to be better suited sump type placements __________________ Roland

10/30/2007, 08:50 PM	#7
bertoni RC Mod Join Date: Mar 2002 Location: Mountain View, CA, USA Posts: 68,505	I've used Phosphate Killer, and that seems fine. Warner PhosAr HC has gotten very good reviews. __________________ Jonathan Bertoni

10/30/2007, 08:07 PM	#3
mobujen Registered Member Join Date: May 2005 Location: Bay Area, CA Posts: 53	I've been using phosguard for a couple of weeks now on recommendation from my LFS. I just read about the Aluminum issue with this product and was doing some research for a replacment. What is GFO and will it work in a media bag placed in a high flow area of my refugium? Thanks, Mike

10/30/2007, 08:39 PM	#6
mobujen Registered Member Join Date: May 2005 Location: Bay Area, CA Posts: 53	Thanks guys! I'll do some research on that product.