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

447 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
  • Great product By on 11/6/2016

    I would highly recommend this product. It helps with keeping algae in check and off your Aquarium glass.
  • Great value By on 9/15/2016

    Will definitely order again
  • Another home run for BRS By on 9/5/2016

    I was using Two Little Fishes phosban whatever stuff, it's too fine of a material for my taste. So I switched to BRS's GFO and I am very pleased with it. It comes in larger containers and it's cheaper.
  • Works Great By on 8/24/2016

    Good value, & quality
  • This stuff really works! By on 8/8/2016

    This product really performs when used in a reactor and will last at least a month in my 91 gallon system. My phosphates are no longer a worry for this reefer!
  • Awesome product By on 7/28/2016

    I should have installed a reactor a long time ago.
  • i love this product By on 6/25/2016

    .i watched a few of your videos and review videos from your customers. i had a lot of problems with my phosphate and this product would help with there was nothing to loss this would have been my last draw. i ordered the BRS GFO Reactor, as well with the GFO. When i started to use this product with in 24 hours my phosphate was zero....i have worked for years trying to get this down to zero i have used different things over the years and nothing works better then this stuff.THANK YOU THANK YOU THANK YOU.i have never had a problem since.My phosphate still sits at zero.
  • 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.