brs high capacity gfo question

[josepy1]

So ive been running GFO (Phosban) in my third chamber in the vertex calc reactor for about 6 weeks now and te phosphate is stable, but still high. I have a bulk reef order coming in on tuesday and was wondering if I put the high cap on top of the carbon reactor, seperated of course but in the same reactor, as well as keeping it in the third chamber, or if i should get another reactor for the gfo itself? thanks for all your help in advance.

 

[swannyson7]

I'd put the GFO in a seperate reactor. The flow rate through GFO & carbon are different, and either the carbon or GFO will be broken up into a fine powder and then released into your water column if it's tumbled together. I can't remember which one is softer and will powderize, but either way it isn't a good thing. Excess carbon in your water column has been found to cause HLLE in fish and if the GFO is put back into your system, then it really won't do anything to help with phosphates. HTH

 

[josepy1]

thanks for the reply. Both Rox and HC GFO require very low flow so im doing a test run in the same reactor for about two weeks or so. I will keep you all posted.

 

[josepy1]

OK so here is the results; In one pretty big reactor with a maxi jet, reduced with quarter line i have one cup of BRS Rox carbon and one cup of High capacity GFO, recommended dose for a 140g tank. In five days the phosphates have dropped from .15 to .00. unbeleavable results. Just going to test once a week and try and fine tune the Gfo so its running at about .03 and i will keep anyone wondering posted in the weeks to come.