Pros and cons of Running bio pellets and gfo during the cycle??


New member
If it is a new tank you dont need to run gfo as there is no phosphates plus you will be starving the bacteria in the biopellets for food

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Premium Member
Running GFO might remove a bit of phosphate that otherwise might bind to the rock. The pellets take a while to seed, so I don't think they'll make any difference at all. Over the long term, I doubt it matters either way.