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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

399 Review(s)

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1 lb
SKU: 000600
Earn 21 Reward Points
1/2 Gallon (2 lbs.)
SKU: 000601
Earn 39 Reward Points
1 Gallon (4 lbs.)
SKU: 000602
Earn 61 Reward Points
5 Gallon (20 lbs.)
SKU: 000603
Earn 279 Reward Points
  • good stuff By peter on 6/25/2015

    pretty good stuff. works as advertised.
  • Works great By Ray on 6/11/2015

    Very important piece of the algae free puzzle.
  • Slightly larger pellets are awesome. By Turf on 6/7/2015

    The slightly larger pellet size has made it substantially easier to deal with in a filter sock or reactor the ones I've used in the past.
  • 5 stars hands down By troy on 5/27/2015

    Easy to use rinse in ro di or with water change water and good to go
  • You know, Gfo. By Vegareef71 on 5/24/2015

    Brs Gfo is affective and very easy to use. Just follow the instructions on the container or hit up BRS online and the calculator with help you out.
  • Worth it By Sosee on 5/21/2015

    a good value but don't use the amounts they recommend in the reactor. I followed the advice of a seasoned reefer and used half the recommended amount and it works great! Using too much can effect your alk levels.
  • great By wiz on 5/20/2015

    I'm assuming by my lack of green dlime and hair algae it has worked as promised. Thanks
  • It really does mean granular By James on 5/13/2015

    I've only had the GFO in for about a week now but I've been testing every day (too much time on my hands) and my phosphate level is definitely on its way down. Not enough time yet to say anything about the algae, but science doesn't lie. I only have one thing, filter socks don't work with this. I put it in and started to rinse it out and it started coming out of the sock like dust (which it is). But that's my lack of experience, not the product.
  • A must for reef By Deafclown on 5/6/2015

    I wish I had used this in the beginning! I believe it's a must have for a reef to help keep phosphate down and calm the algae growth.
  • great By fernie on 5/5/2015

    this gfo worked great on the phospate and controlling the algea problem

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