Reef Central Online Community - View Single Post - GFO and GAC in Canister filter (like Randy's)

TekCat · 12/03/2006, 04:23 PM

Randy, you've mentioned that you run GFO and GAC in canister filter. I'd like to do the same since I already have Magnum 350

So, here are some questions:

1) if I drop 150gramm GFO (lets say Phosban) into canister running 350gph, wont it reduce GFO's effectiveness? According to 2LIttleFishes, ~90gph is what's needed.

2) With GAC needed to be changed frequently, do I use the same schedule (lets say 2 weeks) to replace GFO? Or I could use leave it there for longer time?

3) Have you tried and/or recomend to use GFO with ChemiPure? Just because they advertize longer life span vs GAC?

Thanks in advance

12/03/2006, 04:23 PM	#1
TekCat Registered Member Join Date: Sep 2005 Location: MN Posts: 3,130	GFO and GAC in Canister filter (like Randy's) Randy, you've mentioned that you run GFO and GAC in canister filter. I'd like to do the same since I already have Magnum 350 So, here are some questions: 1) if I drop 150gramm GFO (lets say Phosban) into canister running 350gph, wont it reduce GFO's effectiveness? According to 2LIttleFishes, ~90gph is what's needed. 2) With GAC needed to be changed frequently, do I use the same schedule (lets say 2 weeks) to replace GFO? Or I could use leave it there for longer time? 3) Have you tried and/or recomend to use GFO with ChemiPure? Just because they advertize longer life span vs GAC? Thanks in advance