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BRS Bulk GFO Granular Ferric Oxide

  • now winning the battle By algae victory on 6/13/13

    Had a pretty good algae bloom in reef tank 1yo. Never used GFO decided to give it a try in my sump sock. Day two seeing significant results oh and new sock was green after day one.
  • Instructions on package were confusing By Charles on 6/13/13

    I got this from a friend that had taken down his tank. I am overall satisfied with the product itself, but the instructions were confusing and I believe i used way too much after the initial period. I got some clarity on it with the calculator. My pump went up on me for a couple days and i started noticing algae growth almost instantly. Got a new pump and did a water change and the GFO did the rest.
  • Good quality GFO By Bill on 6/7/13

    This GFO works well and is very cost efficient way of removing PO4 in any aquarium. No problems does exactly what it is supposed to do.
    I do find that it has more fines to be rinsed than some higher quality GFO (RowaPhos).
  • Best on the market By MAREK on 6/5/13

    Absolutely best GFO on the market. I'm always buying only from BRS. Perfect fro BRS GFO reactors. Excellent quality.
  • effective and good price By Mike on 6/2/13

    Used regularly it has transformed my reef from an algae jungle to a coral jungle!
  • GFO Works By AC on 5/16/13

    With the use of the BRS GFO I have removed just about all my algae problems in my tank.
  • SOLID PURCHASE!!! By Dolmo5000 on 5/6/13

    Although I find the need to flush BRS gfo more than others I have used in the past, the cost difference more than makes up. Another solid product out of the BRS team!
  • Not sure yet By Michael on 4/29/13

    Have been using for about 3 weeks so far with no change in my phosphate level. Doing water changes also. Need more time to evaluate not sure about recommending yet. Phos Ban maybe better.
  • Great Stuff! By Edward on 4/26/13

    Made the mistake of trying a different brand after using BR GFO; I'm back!
  • it really does work people so buy it! By dimitri on 4/18/13

    i am running my gfo thought the BRS Dual Reactor its amazing and completely worth it buy it you will not regret it. fixed my tank and all the algae problems it had.

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