BRS Bulk GFO Granular Ferric Oxide - High Capacity

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  • Remove phosphates from your tank with Granular Ferric Oxide

BRS Bulk GFO Granular Ferric Oxide - High Capacity

198 Review(s)

Choose a size

1/4 Gallon (1.75 lbs)
SKU: 000621
Preferred Reefers earn 215 points
1/2 Gallon (3.5 lbs.)
SKU: 000622
Preferred Reefers earn 395 points
1 Gallon (7 lbs.)
SKU: 000623
Preferred Reefers earn 645 points
5 Gallon (35 lbs.)
SKU: 000625
Preferred Reefers earn 2,995 points
  • Nice product By on 8/2/2017

    This works pretty well and rinses clean very easily. Definitely ordering again.
  • I do not like it By on 7/20/2017

    I was using phosguard for a month a all my corals was doing fine, so I decided to try out gfo since they have very high review,only use half the recommend doses and after a week all my zoas react weird and some of them melted.
  • Effective and Efficient By on 6/13/2017

    I use this GFO on a BRS reactor with Carbon and it reduced my Phosphates to 0. When I get any reading (0.01 or more on my Hanna), I change the media an it immediately goes back to 0. Excellent product.
  • Excellent product By on 5/23/2017

    I have tried different brands of GFOs and BRS High Capacity GFO is the best of all. Worth every penny, don't waste your money on fancy name brands.
  • Worth every penny By on 3/21/2017

    I upgraded to this High Capacity GFO from the normal BRS GFO about 6 months ago. I get roughly twice the life out of this stuff which is important because I am lazy at switching my media and I travel for work a lot. So any time I can save working on the tank to enjoy it more is worth it in my book.
  • Low residues or particulates By on 12/16/2016

    Very high capacity last longer than regular brand with almost no residues.
  • Performs great at a great value By on 11/24/2016

    Very little dust, lasts much longer than other GFO and at a solid return for your money.
  • Worth the money By on 6/26/2016

    Quick to rinse, works great.
  • dan would recommend this product to a friend By on 6/14/2016

    Very good product.
  • BRS Bulk GFO Granular Ferric Oxide - High Capacity By on 2/6/2016

    Very good product