Great Product By Bob on 8/23/2011
Bob would recommend this product to a friend
I used the HC in the BRS reactor in my 85 gal tank. Though it did take almost all my algae away it was hard to dial in the reactor with the HC. I was constantly having to dial it in. It could have been user error however i currently use the Precision Marine reverse reactor with the Granuller and it works great on my 185.
good value and performance By Christopher on 8/17/2011
Christopher would recommend this product to a friend
I've used other products and found for the price you can not go wrong with this gfo. This gfo helped solve my phosphate problem and dropped my levels to 0 almost overnight. Use it in a reactor which works really well.
Great!!! By Bryan on 8/11/2011
Bryan would recommend this product to a friend
I started using this product almost a year ago. Like many of us I started without using RODI I was using distilled water or Ozarka for topoffs and saltmix. Hair algae and Phosphates soon took their unwated presence. After using this in a Reactor and using the RODI unit from this site no more algae, or nasty CYNO
prefer the pellets over the granules By Lee on 8/10/2011
Lee would recommend this product to a friend
The granules need more care in controlling water flow and tumbing to prevent the agent from breaking down and entering the water stream. The pellets seem to be more mechanically stable for use in a reactor. Both products do a fine job in scrubbing PO4 from the system.
Better than other brands used By Mike on 8/7/2011
Mike would recommend this product to a friend
I have used a couple other brands of GFO in the past. after a day or two, they tend to clump up. I have had no clumping with BRS GFO. Thanks for offering a superior product at a great value.
Just what I needed to get the job done! By Robert on 8/3/2011
Robert would recommend this product to a friend
There’s no comparison, GFO took out more phosphates in a 24 hour time frame than its aluminum oxide competitor.
wow By jeremy on 8/1/2011
jeremy would recommend this product to a friend
dose the job very well
Save Money Buy Bulk By ReefJunkie on 7/19/2011
ReefJunkie would recommend this product to a friend
Great stuff at a good price. This GFO has low dust and tumbles quite nicely, all you have to do is tune your reactor till the output water is reading 0 P04 and your done.
Great Product! By nathan on 7/15/2011
nathan would recommend this product to a friend
I have used many phosphate/silicate remover's and this one is by far the best!
Working Well By Nathan on 7/15/2011
Nathan would recommend this product to a friend
Been using BRS HC GFO for the last 6 mos, and while it hasn't been able to take my levels to 0, it seems to be effective in getting them very low.
great product By Ralph on 7/13/2011
Ralph would recommend this product to a friend
I recomend this GFO to anyone with phosphate problems. I have made GFO a part of my regular maintainance.
Very effective By Joseph on 7/10/2011
Joseph would recommend this product to a friend
I have a hair algae problem, well I should say had a hair algae ever since putting this GFO in a filter bag in my sump it has been dying off within 2 days. Lookin good. Works great
works as well or better By Miles on 7/2/2011
Miles would recommend this product to a friend
works as well or better than phosban
A great value By David on 6/28/2011
David would recommend this product to a friend
I started using this GFO a couple of weeks ago in my Phosban reactor, and it is helping greatly in my battle with nuisance algae. It is much cheaper than the other brands and just as effective.
Work Excellent By Adam on 6/20/2011
Adam would recommend this product to a friend
I would recommend this product to anyone who has a saltwater aquarium.
Work as Advertised.. By Toure on 6/14/2011
Toure would recommend this product to a friend
I run BRS GFO for the last year and a half in my 250 gallon system and its great, it doesn't leach phosphates as some of the other product out on the market. It also work very well in a media reactor as it doesn't break down.
GFO AWSOME By Melvin on 6/9/2011
Melvin would recommend this product to a friend
Every product that I bought so far works way beyound my expectations and the GFO is no exception. It is perfect for the reactor. Its like a magnet for Phosphates. ZERO in just 18 hrs. BRS is awsome at saving you money in the long run. I wish I found BRS a lot sooner. I would have saved so much money doing things one time instead of many.
algea free By Benjamin on 6/7/2011
Benjamin would recommend this product to a friend
Working great so far. Tumbles nicely in the dual filter system.
what you need for phosphate control By Alan on 6/4/2011
Alan would recommend this product to a friend
This matches the effectiveness of the name brands and comes a good deal cheaper. I can't justify going back to the others anymore.
Easy to use By John on 5/31/2011
John would recommend this product to a friend
I have always used this in BRS reactors which make it easy to use and replace. I watch the rate at which algae grows on my glass as a basis for when to replace my GFO. This product is great for beginners and experts.
Great Product By Aide on 5/27/2011
Aide would recommend this product to a friend
I have used other GFO products but by far this is the best I have come across. Very easy to rinse and use. I would definitely recommend this product to anyone
Great Product By Nicholas on 5/21/2011
Nicholas would recommend this product to a friend
Even with just running in a filter sock, my phosphates dropped by half in just 2 weeks. MAKE SURE YOU RINSE BEFORE USING. This stuff turned my tank red for about 2 days, but that was my own fault. Highly reccomended!
phosphates @ Zero By greg on 5/15/2011
greg would recommend this product to a friend
Great product, I would highly recommend to everyone. I use it regularly in the dual reactor and have had great results.
Excellent product, excellent price By shaungee on 5/11/2011
shaungee would recommend this product to a friend
This product exceeded my expectations from what I had in mind after seeing the price. This is by far some of the most effective media I have found to date. Within 72 hours, my PO4 levels zeroed out and have not risen in two weeks. Amazing stuff!
Inexpensive By Tim on 5/10/2011
Tim would recommend this product to a friend
Purchased this a couple of years ago when it was sold in bag form and it's a solid performer. Performs just like the big brands at a fraction of the price.
Great product! I will be buying more of this! By Chris on 5/9/2011
Chris would recommend this product to a friend
I bought this due to it's phenominally low price, and was a little hesitant. It turned out to be an excellent product, and easily performs as well as the higher priced brand name types. I plan to buy more, as soon as I need it. It doesn't require a ton of rinsing, and if you use half the recommended dosage, but change it out twice as often, I've found it works better at reducing algae, and keeps the system more stable. Thanks, BRS!
No more phosphate By Jerry on 4/29/2011
Jerry would recommend this product to a friend
An absolute must for a reef tank. Does an excellent job removing phoshate from the aquarium.
Great product! By DJ on 4/15/2011
DJ would recommend this product to a friend
Don't have a big problem with phosphates but I still run this product 24/7. Easy to use.
Good Stuff! By Steve on 4/11/2011
Steve would recommend this product to a friend
Works great.......wouldn't run a reef tank without it.
Good Stuff! By Gabriel on 4/7/2011
Gabriel would recommend this product to a friend
I could see the growth take off on my sps corals immediately after using this. Highly recommend.
Cuts down that Phosphate By Jetthril on 3/30/2011
Jetthril would recommend this product to a friend
Unlike most other folks would use this product in a reactor, I used this product in a media bag. Be sure to rinse out the dust before use. Due to the fact that the GFO bunches up after getting wet, I would recommend using less than what the calculator on this website recommends and change the media more frequently (not every 8 weeks), that way you water can more easily flow through the media, and the GFO can more easily take out the phosphate in the water.
great By jesse on 3/28/2011
jesse would recommend this product to a friend
works and performs great in my brs reactor..
Works great in a Freshwater Planted Tank By Duane on 3/20/2011
Duane would recommend this product to a friend
I first of all borrowed some GFO from a fellow reefer to use in my Planted FW Discus 90gal. I was having a terrible time with algae. I followed the directions on the BRS "Information" page and set up a reactor with the GFO. Within a few days, my Phosphate level went for a 2ppm to a .5ppm. The GFO helps maintain the Phosphates at a acceptable level. It does not zero the phosphates out because my substrate leaches phosphates into the water and I want low level phosphates to aid in plant growth. So I have found this stuff works perfectly for me. So I purchased my own BRS GFO, which is a much better buy than the name brand. Thanks BRS!
Best GFO on the market By Rick on 3/17/2011
Rick would recommend this product to a friend
Don't be fooled by other "branded" GFO, this one works, and works well. I've used it for years and test 0.0 PO4!
Effective GFO By Michael on 3/17/2011
Michael would recommend this product to a friend
I have a 100 gallon heavily stocked SPS tank. The BRS Granular GFO is by far the best cost saving choice and maintains phosphate at nearly zero as well as any of the name brand GFO. I've tried many of the different types on the market and have observed no difference in coral growth and calcification. It is an effective GFO at a fraction of the cost. Keep in mind that running GFO is reported to knock down magnesium levels. You may need to order the magnesium supplements from BRS and a test kit to maintain your levels. Another option is to run GFO sporadically to knock down the phosphate levels and reduce amount you feed. For best results start running GFO with a new tank.
What Phosphate? By Kevin on 3/15/2011
Kevin would recommend this product to a friend
What can I say about the GFO? it works as described and extremely fast. The cost is super cheap compared to other brands and way more then enough to last for months. Great job BRS!
Awsome product By Keifer on 3/14/2011
Keifer would recommend this product to a friend
I order this stuff after I got an algae break out and this stuff cleared it up right away. 5 stars all the way!
Does what it is supposed to do at a fair price By Larry on 3/14/2011
Larry would recommend this product to a friend
I run BRS GFO in a 2LF 150 reactor. Keeps phosphate levels @ 0. Did a great job helping me get rid of some hair algae.
Great product and better price!! By Ryan on 3/13/2011
Ryan would recommend this product to a friend
This GFO is great and is working wonders on my reef tank and has ruduced my phosphates to nearly zero and twice as cheap then my local pet store and is one of the most important things to use in a reefer tank IMO..
amazing product By Jason on 3/6/2011
Jason would recommend this product to a friend
I use this in a gfo/carbon reactor and the water clarity in my tank has a drastic improvement. I no longer have to clean the glass every day, its now once a week
Great! By Hi Salenity on 3/6/2011
Hi Salenity would recommend this product to a friend
Man if you don't use GFO you need to! This is nice stuff with very low dust
Great product By Will on 2/23/2011
Will would recommend this product to a friend
I use GFO in BRS reactor along with snails crabs, shrimp and a tang to keep algae away. The only thing that grows on my live rocks are coral and purple coraline, thank you GFO!
Great product By adam on 2/22/2011
adam would recommend this product to a friend
for anyone that doesnt know, this product is basically the same as phosban. the only difference is the granule size may be a little smaller and that its a ton cheaper.
GFO Works! By Bernardo on 2/16/2011
Bernardo would recommend this product to a friend
Used this in my sps reef. Corals colored up quickly and algae was almost nonexistant.
Love This Stuff. By David on 2/15/2011
David would recommend this product to a friend
There isn't much more to say. It works, it does so without an excess of fuss, and it is easy to use. If you have any phosphates, this is the way to go.
Excellent GFO! By Fredy on 2/14/2011
Fredy would recommend this product to a friend
I love the fact that I do not have to worry about algae any more! I wish I had started using this GFO years ago!!! Thank You BRS!
What a great value By Mrfairywrasse on 2/6/2011
Mrfairywrasse would recommend this product to a friend
I have tried 5 different GFO products in the last 4 years and this one is the best. Easy to rinse, very effective and an incredible value over other products. NO more hair algae!
Does a Great job By Metal Man on 1/31/2011
Metal Man would recommend this product to a friend
This GFO saved my tank from a GHA plauge. Now after Iv pulled it off Iv got a cyano out break, so it looks like I will be ordering more.