BRS Bulk GFO Granular Ferric Oxide

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  • Remove phosphates from your tank with Granular Ferric Oxide

BRS Bulk GFO Granular Ferric Oxide

440 Review(s)

Choose a size

1/4 Gallon (1 lb)
SKU: 000600
1/2 Gallon (2 lbs.)
SKU: 000601
1 Gallon (4 lbs.)
SKU: 000602
5 Gallon (20 lbs.)
SKU: 000603
  • Excellent quality and value By on 6/5/2016

    Cheapest gfo and works great clean high quality products as always idk how the competiters are still in buisness!
  • Outstanding product By on 6/5/2016

    I placed GFO in both my reactors on my two salt water tanks. One fish only the other a 20 gallon long reef tank. My phosphates went down to 0 ppm. Never had that happen till now.Highly recommended for any reefer.
  • Good stuff By on 6/1/2016

    Works as advertised.
  • Good stuff By on 5/10/2016

    Good stuff
  • good price for the quality By on 5/6/2016

    great service and customer support
  • BRS Bulk GFO Granular Ferric Oxide By on 5/5/2016

    Excellent product
  • Works Great By on 4/20/2016

    I have been using this GFO for about a year now. I use it along with the ROX carbon on all my tanks. I have had great results from it and see no reason to change what works. I did try the high capacity one when this one was on back order a while ago and I did not see a big difference on performance. Then again my tank is very stable I should not see that much of a difference. I do change it every month along with the carbon so I don't get to push it to its limit. It is not expensive so I see no reason to push it. On occasions it has run for longer than a month as I have been away on business and my readings did not change so it does last longer than the month.
  • Drops PO4 fast By on 4/19/2016

    Thoroughly love to watch our PO4 go down to near zero/zero. We need to feed frozen food 2x a day and this helps to keep our PO4 in check!

    this keeps my phosphates down, i change this in my Reactor about every 4 to 6 weeks been using this for years
  • Great stuff By on 4/11/2016

    This stuff is great and cheap. Can't go wrong with brs

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