gfo By kevin on 1/20/14
kevin would recommend this product to a friend
i use this in a brs reactor and it works great
great overall By Nicholas on 1/16/14
Nicholas would recommend this product to a friend
Product is good, however I will choose the high capacity next time, because there seemed to be a lot of fines with the regular gfo.
Great stuff By Trevor on 1/15/14
Trevor would recommend this product to a friend
Phosphates stay right at 0 By Matt on 1/15/14
Matt would recommend this product to a friend
I use the GFO in a fine mesh bag in my canister filter. It keeps my Phosphates right at 0 unless I feed heavily, then it pulls them right back down by the next day. The grains are very small, use a fine mesh bag if you need a bag.
This stuff is REEF MAGIC By Vince on 1/14/14
Vince would recommend this product to a friend
Don't even bother with the cheap imitators, this stuff not only is cost effective but it takes a while to deplete. Be careful to dial in the right amount or you can have a huge drop in your P04 and can harm some corals, I noticed I couldn't get my p04 under ~.5 until I ran this in a reactor which I only recommend.
Works! By Keith on 1/14/14
Keith would recommend this product to a friend
Works perfectly, my tank is phosphate free!
Fingers crossed By Renee on 1/14/14
Renee would recommend this product to a friend
This is the first time I am using this. I usually buy the high capacity gfo, which is a great product., but it is sooooo expensive, I decided to try this. I haven't noticed any bad differences, so I am rating it great. But I am keeping my fingers crossed that I did not make a mistake.
Great GFO By TremontReefer on 1/14/14
TremontReefer would recommend this product to a friend
Great GFO. No issues. Keeping phosphates down well.
Excellent standard GFO By George on 12/30/13
George would recommend this product to a friend
I used this before I bought the high capacity GFO. Unless the high capacity is on sale, this is the way to go. Inexpensive and an excellent way to control algae!
Did it's job By Chris on 12/24/13
Chris would recommend this product to a friend
Product brought my phosphates down however it is very fine and I had to reduce my flow rate dramatically in my reactor. I have since started using another product which is way more granular and I am able to increase the water flow to my reactor thus getting more water treated.
With BRS however you get way more product for your buck. So it's hard to beat
Great product By brian on 12/19/13
brian would recommend this product to a friend
Ordered product to mix with carbon to remove phosphates it did so and overall water quality has improved
VERY dusty. By Quinnchero on 12/18/13
Quinnchero wouldn't recommend this product to a friend
I realize I'm spending a little less on BRS products and shouldn't expect the world out of them. With that said, the GFO arrives very worse for wear, seems like the packing guy shook the container on a paint mixer for an hour or two! easily 1/3 of the pound was entirely useless; making the purchase actually WAY over priced for usable product. Sorry BRS, I LOVE your store and most of your own branded product, but this one has failed me a few times now.
Great product at a great price. By David on 12/14/13
David would recommend this product to a friend
I bought a gallon of this. It's does what it says... I change it out every 3 weeks and my phosphates stay at 0.
fair By Dustin on 12/11/13
Dustin would recommend this product to a friend
works ok. i run it in 2 reactors for my 300. feed responsibly and I still have some phosphate. A little on the pricey side IMO for how it performs
Good stuff By Dioncuda on 12/8/13
Dioncuda would recommend this product to a friend
It does work very well, great for the money.
Good Product! By Jake on 12/8/13
Jake would recommend this product to a friend
Good product! tumbles well, not much dust at all, and does what i want it to do!
Excellent product By Mrehfeld on 11/23/13
Mrehfeld would recommend this product to a friend
This product is excellent and does what it's meant to do! See my other review on the GFO reactor.
Great product By Ray on 11/5/13
Ray would recommend this product to a friend
Great product for a great price.
DON'T OVERDOSE By Daniel on 10/31/13
Daniel would recommend this product to a friend
Works great if dosed responsibly, BRS has a great calculator. I accidentally used too much and it turned my tank very cloudy.
Good product By A.R. on 10/19/13
A.R. would recommend this product to a friend
Great customer service and fast shipping. As the product itself is good but very slow process. Overall good product and addition to the reef environment if you are having algae problems.
A fair deal on a reef maintenance staple By raysun on 10/14/13
raysun would recommend this product to a friend
At $22.00 for a pound, it's hard to argue the price for standard capacity GFO. It comes packed dry and pretty much dust free so media changes are easy. Little if any residue rinses out when first loaded into a media reactor or filter bag. (Contrast RowaPhos, for example, a fine product too, but it seems to emulate the Mississippi river for brown flow when first rinsed.)
To maintain my LPS tanks at their current low phosphate levels, this does the trick. When levels rise to 0.05 ppm, I change the media. Within hours phosphate levels drop to undetectable.
If I had a big phosphate problem, I'd consider springing for the High-Capacity (and high-cost) GFO to get more phosphate removal between changes. Large bio-loads, heavy feeding, or new rock that leaches phosphate might weigh into that decision.
At a recommended usage rate of 1 tablespoon per 4 gallons of aquarium water, large aquariums would use a fairly large dose of this stuff. 100 gallon tank would use just shy of 1 1/4 cups per media change - a bit more than 12 media changes for a gallon of GFO. Really large setups will probably benefit from using the HC GFO.
Best value By Dennis on 10/5/13
Dennis would recommend this product to a friend
A great value for use in reducing phosphate levels. Water quality has steadily improved in multiple large reef tanks with heavy fish loads. Corals love it.
6 month review, intermediate/ advanced reefer. By Join the Revolution on 10/4/13
Join the Revolution would recommend this product to a friend
Good product. Not great. expires quickly if you have a phosphate issue.1 week tops until a change out is due if you already have GHA. This product may work great for a low nutrient established tank with a fuge, killer skimmer, and methodical husbandry. I don't own a killer skimmer, (its stock on my 25 gallon Ecoxotic cube), nor do I utilize a refugium. My husbandry is anal-retentive. Therefore I rate this product a 3 out of 5. I am now changing it out weekly until it runs out. Afterwards I will stick with Rowaphos or try BRS high capacity. Either way, I will report back with informative comments. I will always buy from BRS because of their products, website design, and most importantly their relative and educational videos.
Best Price By Mario on 10/3/13
Mario would recommend this product to a friend
Honestly by far the best GFO I've used, you get the most for you money and then some! Happy customer!