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View Poll Results: Do you test to determine when your GFO needs changing?
Yes 6 7.89%
No, I change it on a schedule 22 28.95%
No, I change it when my tank looks like it needs changing 20 26.32%
I don’t use GFO 28 36.84%
Voters: 76. You may not vote on this poll

 
 
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Old 12-01-2009, 05:28 PM
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I can't honestly say I've noticed a difference running GFO or not. So I stopped buying it.

What do other people notice about their tank with, versus without, GFO? Film algae on the glass? Water clarity? Etc.? Just wondering what people see, because I couldn't see a difference myself.

FWIW I've also never been able to get a non-zero PO4 reading on any test kit, or colorimeter I've used. Never. (And trust me I've gone through my share of test kits!!!) This makes NO sense to me, because I feed heavy, and don't do anything specific to mitigate phosphate.

This is one of the hugest question marks to me in the hobby.
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