- Home /
- BRS Bulk GFO Granular Ferric Oxide
GFO Works By AC on 5/15/13AC would recommend this product to a friendWith the use of the BRS GFO I have removed just about all my algae problems in my tank.
SOLID PURCHASE!!! By Dolmo5000 on 5/6/13Dolmo5000 would recommend this product to a friendAlthough 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 4/29/13Michael would recommend this product to a friendHave 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 4/26/13Edward would recommend this product to a friendMade 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 4/18/13dimitri would recommend this product to a friendi 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.
will always use By Pongo on 4/17/13Pongo would recommend this product to a friendHaving started with SW in the dark ages and then coming back to it alot has changed and gfo is certainly a great product. I had been battling dino's for a few weeks. Within 24 hrs of starting with gfo I noticed a immediate reduction in dinos to almost complete elimination in less than a week.
Great product at a Great Price By Bpareti on 4/15/13Bpareti would recommend this product to a friendSummary says it all.
could not ask for more.
GFO works best for phosphate removal By Vincent on 4/14/13Vincent would recommend this product to a friendI run the GFO in A BRS dual Reactor with carbon. Never have any phosphate issues.
Great Product By John on 4/14/13John would recommend this product to a friendBrs gfo is the best value of all gfo. It pulls the phosphate out and keeps it down
Great product but attention to detain in packaging the product is lacking By Glenn on 4/11/13Glenn would recommend this product to a friendGreat product. My first purchase of this product was exceptional in all ways, but my recent purchase was less than desireable. The 5 gallon container had GFO all over the outside of the plastic bucket and in the bottom of the shipping box.
Attention to detain was lacking!
GFO By DAVE on 4/11/13DAVE would recommend this product to a friendBest price for any gfo. You will not regret this purchase
Beat price GFO around By Shawn on 4/11/13Shawn would recommend this product to a friendI was at a big box store the other day and saw less than 6oz of GFO for about 40 bucks here you can get 2lbs of a great product for same price. my phosphates stay low keeps allege in check and corals growing.
Ask a Question About 'BRS Bulk GFO Granular Ferric Oxide'
Previously Asked Questions
by David on February 1, 2013, @7:16 PM
Do You rinse granular GFO before putting in the reactor?
Bulk Reef Supply Hey David,
You do want to rinse the GFO, but there is a couple of different ways you can do it. Some people rinse it ahead of time. Personally I find it easier to just put the gfo in the reactor, point the output of the reactor to a bucket, turn it on and let it run into the bucket until it rinses and runs clear.
by Allen on February 15, 2013, @8:46 AM
How much does one need to use for a 150G tank with a 30G sump?
Bulk Reef Supply Hey Allen,
For a tank that size you would be looking at about 2.75 cups of the gfo.
Checkout our handy reef calculator if you haven't seen it already, it can be used to calculate how much of any of our bulk products you need for your tank!
by Robert on August 10, 2012, @10:45 AM
How many cups are in 1lb size?
Bulk Reef Supply Hey Robert!
The 1lb container of GFO comes out to right about 4 cups.
by Jeremy on March 6, 2013, @4:14 AM
what is the reccomended flow through the GFO in a media reactor?? Is 150gph too much or too little?
Bulk Reef Supply Hey Jeremy,
Its really less about the number of gallons and more about the movement. Your looking for the least amount of flow that just slightly tumbles the media. How much flow that is depends on how much media, etc is in there. Usually your looking for a 300gph pump to have enough power to push through the media, though the actual flow rate will usually be a lot less.
GFO comes in two types:
- Granular GFO is varied in its shapes and requires the least amount of flow to tumble. Good for reactors.
- High Capacity GFO is twice as dense as Granular GFO, so twice as much material will fit into a reactor. It's extremely hard and has less dust to begin with. Fewer fines will be created during use and transportation. By volume High Capacity GFO will remove roughly twice the phosphate compared to Granular GFO. Best overall performance.
Special note on fighting existing algae problems: Algae needs three main nutrients to grow: phosphate, nitrate and light. Reducing any one of these will significantly slow down algae growth but many not completely solve your issue. Once algae takes hold, it can be a difficult battle but it is winnable. The best offense against algae is to take preventative measures and attack before an outbreak is apparent. Use the following suggestions and be aggressive if an algae problem is already present:
- Maintain undetectable phosphate levels with good feeding habits and use of a phosphate remover like GFO. 99% of all phosphate is added via foods added to the tank.
- Control nitrate levels by reducing feedings, increasing the water change schedule and maintaining a properly sized protein skimmer.
- Use nutrient free RO/DI water for water changes and top off water
- Shorten your lighting period or intensity. In some cases aquarists have found replacing old bulbs that have fallen out of their intended spectrum helps as well
- Continuously remove as much algae as possible by hand.
- Add predators nothing helps an algae outbreak as much as critters who eat it all day long. Various tangs, lawn mower blennies, crabs and snails are all good options. It is also theorized that a healthy pod population will also control algae growth before it gets a chance to take root.
Deal of the Day!
Pan World 100PX-XEnds in
Regular Price: $184.99
Special Price: $165.9900:00:00:00
- FREE PRIZE$
- Father's Day Gift Ideas
- Bulk Media & Additives
- Bulk Reverse Osmosis Filters & Systems
- Bulk Dry Live Rock & Live Sand
- BRS Additives
- Red Sea Additives
- Korallen-Zucht Additives
- Two Little Fishies
- Fauna Marin Aquarium Additives
- Auto Top Off Systems
- Filter Media
- Fish & Coral Foods
- Fragging Supplies
- Heaters & Chillers
- Medications & Pest Removal
- Monitors & Controllers
- Protein Skimmers
- Sumps, Tanks & Refugiums
- Tank Maintenance & Salt Mix
- UV & Ozone
- Videos & Books
- New Products
Send us your feedback
Let us know.
Hours: 9am -5pm CST M – F
672 Mendelssohn Ave N, MN 55427 Map