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View Poll Results: Do you use GFO?
Yes, 24/7. 54 44.63%
Yes, most of the time. 7 5.79%
Sometimes. 5 4.13%
Not usually, but every once in awhile. 5 4.13%
No, but I want to start. 5 4.13%
No, I choose not to. 21 17.36%
No, I don't have the means to run it. 4 3.31%
No, I didn't know about it or don't know enough to try yet. 21 17.36%
Multiple Choice Poll. Voters: 121. You may not vote on this poll

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  #21  
Old 05-10-2009, 06:01 AM
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I run it in a phosban reactor and change it out every 4 weeks. In testing phosphate, I'm of the opinion that the GFO seems to be measurably effective for not much more than a few days, but I'm not willing to change it that often.

I'm estimating the effectiveness by measuring phosphate in the system vs. the outflow from the reactor. If there is a difference, then I assume the GFO is working. That difference seems to exist for only a very short time.

I think my algae is exporting phosphate much more efficiently than my GFO does.
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  #22  
Old 05-11-2009, 02:50 AM
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Quote:
Originally Posted by untamed View Post
I'm estimating the effectiveness by measuring phosphate in the system vs. the outflow from the reactor. If there is a difference, then I assume the GFO is working. That difference seems to exist for only a very short time.

I think my algae is exporting phosphate much more efficiently than my GFO does.
This is interesting.
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  #23  
Old 05-11-2009, 06:02 AM
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Quote:
Originally Posted by untamed View Post

I think my algae is exporting phosphate much more efficiently than my GFO does.
x2
i second that.
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  #24  
Old 06-14-2009, 05:13 PM
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Quote:
I run it in a phosban reactor and change it out every 4 weeks. In testing phosphate, I'm of the opinion that the GFO seems to be measurably effective for not much more than a few days, but I'm not willing to change it that often.

I'm estimating the effectiveness by measuring phosphate in the system vs. the outflow from the reactor. If there is a difference, then I assume the GFO is working. That difference seems to exist for only a very short time.

I think my algae is exporting phosphate much more efficiently than my GFO does.
Visually I found that my tank looks cleaner when I added the GFO, then slowly returns to its natural dirty state. Your testing sort of backs up my observations.
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  #25  
Old 06-14-2009, 05:16 PM
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I don't use it, I find it has negative effects on the different tanks I've tried it on. Poor SPS colour, and when used at full strength I found it almost always immediately triggered RTN or STN.
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  #26  
Old 06-14-2009, 05:19 PM
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Yes, The GFO consumption rate is dependant on water flow through the reactor. For my 45g, I fill the TLF reactor 1/3 with GFO, Rowa, whatever, and 1/3rd Carbon. seems to last 4-6 weeks for me. But then, no SPS in this tank so not sure on the SPS effects.
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Last edited by banditpowdercoat; 06-14-2009 at 05:21 PM.
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  #27  
Old 06-14-2009, 05:46 PM
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Many of my SPS seemed to improve in color once i began running it, blue coloring emerged from acropora that looked mostly brown before. I went from a phosphate reading of .75 to .01 (Elos test kit) with rowaphos, 40gal weekly water changes, a skimmer rated for nearly twice my system volume, and straining frozen food of packing juice.
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  #28  
Old 06-18-2009, 09:03 PM
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i run rowa in one reactor then follow that up with carbon in the 2nd reactor. change every 6 weeks appx
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  #29  
Old 06-20-2009, 03:03 PM
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just started using it in my filter
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