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BRS Bulk GFO Granular Ferric Oxide - High Capacity

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BRS Bulk GFO Granular Ferric Oxide - High Capacity


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1.75 lbs
SKU: 000621
Earn 59 Reward Points
1/2 Gallon (3.5 lbs.)
SKU: 000622
Earn 99 Reward Points
1 Gallon (7 lbs.)
SKU: 000623
Earn 179 Reward Points
5 Gallon (35 lbs.)
SKU: 000625
Earn 799 Reward Points
  • FRICKIN AWESOME By Wrath of Poseidon on 3/6/2015

    i have lots of fish lots of corals in a 150g can go 2 months with out what changes
  • Very Happy By Benjamin on 3/5/2015

    Been running the HIgh Capacity GFO for two years in two different tanks. On my 90gal. I have the BRS dual reactor with GFO and Carbon. Since running the HIgh Capacity GFO, my phosphate levels are non existant.
  • GFO high cap By Mr. Fish on 3/5/2015

    Great product love it!
  • Solid Product By MarkO on 2/28/2015

    Works. Noticeably higher capacity than regular GFO. Not sure how much, however.
  • Easy and efficient! By Tony on 2/26/2015

    Using with a mix of Rox carbon in my Deluxe BRS reactor and ran clear almost instantly!
  • Great start By Ken on 2/14/2015

    Its the perfect size to get your new GFO reactor off to a great start
  • Great product, but a bit $$ By Submerge on 2/4/2015

    You get what you pay for. This GFO works well in a bag in the sump. It doesn't clump if kept in a high flow area. I just massage it around every few days for "general principle". It does a great job at keeping the phosphates low, about 1/10 of what they were before.
  • Amazing product! By David on 1/14/2015

    I was continuing to have issues getting my Phosphates down to a negligible amount. I was dosing all sorts of products in an attempt to get the counts down. I installed a BRS Reactor with High Capacity GFO and crossed my fingers. I installed it three days ago and today my reading was 0.05! I can't say enough positive things about this product. Thank you BRS!
  • I'm sold, will never run without it. By Bruce on 12/14/2014

    Was having phosphate issues on my 90g mixed reef tank so I thought I'd give it a try after reading the other reviews....they were right! I am running a BRS single reactor and mix about 1 part High Capacity GFO & 2 parts BRS Premium ROX Carbon. After a week I was convinced my Hanna Checker was broken because it kept coming up 0 phosphates...there was nothing wrong with my Hanna. Been using this about 6 months now and have had no phosphate issues or no ill side effects. I didn't think I really needed the carbon but carbon is cheap and has it's benefits, and with the mix you don't have the hassle of tweaking the flow to try to maintain the right amount of tumble.
  • BRS BULK GFO-High Capacity By mt88 on 12/13/2014

    after 2months battle with algae, system running with algae scrubber, refugium, large protein skimmer, with all that running I decided to install and use this product, never thought it would work but after 5 days came back from vacation things really improved and all my sps corals starting to look happy and fish get to eat a little more food.
    Thank you BRS!

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