IMO carbon and gfo don't work together. Its a balance for the bacteria to remove both no3 and po4. And with gfo stripping the po4 first the bacteria never really acomplish its job.
Biopellets does remove po4. But you need a balanced ratio. Po4 will take longer but once the ratio is balanced out they will both drop. If you don't have a balance the the bacteria could stall not removing its potential
But ask kien
Last edited by Proteus; 03-29-2013 at 03:02 PM.
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