The Dual BRS GFO and Carbon Reactor features several distinct advantages over other brands.
- Ultra-transparent media cartridge allows for clear viewing of reactor media
- Heavy duty plastic construction.
- 1/2" Push Connect fittings and ports throughout reduce head pressure and provide ample flow rates.
- High quality easy to use double O-Ring push- connect fittings.
- Easy to operate, clean and maintain.
- High quality ball valve for precise tuning.
- Ability to run carbon and GFO at the same time.
- Instantly attaches to popular pumps like Maxi Jets using included push connect fittings.
- (2) 3 Ft. sections of tubing
- Holds three cups of carbon (Aprox. 300g) or two cups of GFO (Aprox 290g) per canister
- Not for use with Biopellet Media
- Dimensions: 14.5"H x 14"W x 5.25"
- Pump (optional) and media sold separately
Great product By Adam on 10/19/2017Adam would recommend this product to a friendFollow the directions and you won’t have issues. Purchase the silicone hose kit if your sump lacks space.
***MUST HAVE*** By FLSharkvictim on 10/14/2017FLSharkvictim would recommend this product to a friendAnyone setting up a NEW tank OR maintaining one must have a BRS DUAL reactor. I run ROWAPHOS & BRS ROX 0.8 CARBON... HIGHLY RECOMMENDED!
Mandatory Filtration By Brenton on 9/16/2017Brenton would recommend this product to a friendThis has become the backbone of my filtration, which is why I have three. I know everyone says that a protein skimmer is the essential filtration component but I disagree. I fill the first canister with aquamaxx 50 & 100 micron pads and then the second with carbon. It increases the life of the carbon and cleans the water so well. This system makes it easy. Durable too. Multiple ways to rig it up as well as far as pumps. Hard to daisy chain though because there is no straight connector on exit. Probably end up with a fourth sometime soon.
Very reliable and long lasting By Bakerrichard27 on 9/1/2017Bakerrichard27 would recommend this product to a friendI have had these for 6 years love them perform quarterly mainly and you will never have issues
Weak pump By Jtl on 8/7/2017Jtl wouldn't recommend this product to a friendThe MJ 1200 pump is too weak to put enough flow through the dual reactors. Even wide open I could only get the very top of the GFO to tumble when using carbon in the other reactor. I had to remove some of the GFO and run wide open without anything in the other canister.to get it to work.
Bracket should be metal By Bobby on 6/15/2017Bobby would recommend this product to a friendThe reactor is good quality, and the connections are leak free. I especially like the ease of media changes due to the cartridge. However, the bracket should be either metal or more sturdy plastic. It bends doing nothing more than hanging on a mounted position. Please make the bracket metal. This is enough of an issue for me to remove two stars on an otherwise five star product.
I am LOVING IT By Dory on 6/10/2017Dory would recommend this product to a friendMy reactor is running for a month now on a 125g tank and quickly reduced my phosphates to sero! Installation was easy and the plastic mount does the job so far. However, I think steel or some other kind of metal would be better, it feels a bit weak when changing the medium. Overall I am very happy with it and would definitely recommend it.
Easy for beginners By Douglas on 5/31/2017Douglas would recommend this product to a friendTank up and running for about 3 months now and long hair algea blooms have been out of controll. Installed brs dual reactor about one week ago and water is noticeably clearer and phosphates are finally under control. No signs of any new algea blooms!!! Thanks brs videos!!!
PERFECT By PETRO on 5/19/2017PETRO would recommend this product to a friendGREAT PERFORMANCE
It works well By Tim on 5/12/2017Tim would recommend this product to a friendI tried a few reactors before this one and, therefore, knew what I didn't like. Primarily the uneven tumbling of GFO and the difficulty of changing the media. The BRS reactor solved both of these problems. I get even tumbling, even at low flow rates and the media is 10 times easier than my previous reactors.
Good reactor. By Terry on 4/13/2017Terry would recommend this product to a friendThe mount for the reactor should be metal. Connections should be clamped so it's less likely to develop a leak.
Great Product By steve on 3/29/2017steve would recommend this product to a friendJust getting setup great service as always! Love the videos! Thanks for the help.
Ask a question
Thats not an issue. The chambers may look a little empty with the amount of media you use for a tank that size but it won't hurt anything and youll have it for your big tank this spring.
All it takes is a 1/2" push connect union which the reactors themselves come with. Otherwise I have them linked below as well.
GFO stands for Granular Ferric Oxide and it is a phosphate remover. Its actually one of the few effective ways of removing phosphate from the tank which is pretty important as its not only an algae food, but it also inhibits the growth of stony corals as well. Here is a short video we did on GFO
You would want to use these replacement filter pads:
They are 1/2" inline ball valves. They can be found right here:
I will be upgrading my tiny 14 gallon tank to a nice 50 gallon soon. Is this product recommended for a brand new tank?
I would suggest running GFO and carbon on any tank, even better if its a new tank as you can help keep it in good shape rather then trying to to recover after things get out of hand.
You certainly can use the reactor and Carbon and GFO with a freshwater tank! Any of the Carbon and GFO supplements will work great at clarifying the water and removing phosphate. Feel free to let us know if you have any further questions!
The MJ1200 would be a little limited to push back up 30". we recommend an alternative such as a sicce 1.5 which can handle a greater head height. Feel free to let us know if you have any further questions!
The reactor has a small air bleed hole that can be found on the underside of the bracket/lid assembly when the canisters are removed. Most likely it just has a bit of detritus stuck in it. You should see one large exit hole in the middle, and towards the exit side of the reactor a very small hole. Cleaning that out will help the air to bleed out of the system as it runs. That said though, couple of other points worth mentioning.
First of all, if air is finding its way into the reactor you likely need to submerge your pump farther. Sounds like its sucking in air.
Second, and likely most importantly, if their is some air in the reactor it won't effect the performance in anyway. The water is traveling through the system as it should so removing the air is purely an aesthetic thing. It is just for looks, so you could just as well leave it as well :)
I have some questions on the BFS dual GFO and Carbon reactor. Which one is best for my size tank..
I have a 75 G reef with a sump under the tank in the cabinets... I have room for the reactor next to the sump I have limited space inside the sump with my skimmer etc.
So, can the reactor sit outside the sump and how big of a pump will be needed and the dimensions of that pump so I can be sure the pump will fil in the sump...
If you could give me that info I'll get it ordered.
The dual reactor will work perfect and easily can be mounted in the sump or externally mounted to the outside or wall of the stand. If the reactor will be within the 2-3 feet of tubing included we recommend the Cobalt Mj1200 pump which is very small only 4x 2x 4 inches. Feel free to let us know if you have any further questions!
We do sell extra tubing for our reactors. This is sold as 1/2" Mur-Lok RO tubing.
Have a great day!
The flow will typically be base off of the GFO requirement. You will place the sponge at top to prevent GFO from flowing through. Ideally the GFO will tumble smooth without being forced to the top. Feel free to let us know if you have any further questions!
1. BRS GFO & Carbon Reactor – Dual
2. BRS GFO & Carbon Reactor - deluxe
When using the ROX 0.8 carbon you can select either and they will work great! You will use around 1/2 cup of media an the reactors can handle twice that amount. If you are planning on using GFO as well the dual will be nice as you can change the Carbon and GFO at different times. Feel free to let us know if you have any further questions!
GFO will be run very similarly to carbon however ideally it will be tumbling. You will change the carbon once every 4 week and GFO once every 6-8 weeks. Feel free to let us know if you have any further questions!
I am currently running a dual reactor with GFO and carbon. I am considering running bio pellets instead. Would it need to Br modified and what would you suggest I run in the second chamber?
Thanks for your help
Depending on your system size we do not recommend running bio pellets in the standard dual reactor. This would clog very quickly and not feed the correct number of pellets. We recommend a dedicated bio pellet reactor instead.
Assuming you want to run GFO and carbon you would want the dual reactor for a tank that size. If you just plan to run a single media, then the single would be fine.
Great question. When dealing with water clarity it can vary greatly depending on the elements in your tank. If the water contains green water (Algae) It will be tough for the Carbon to remove any of the colors from the water and a large water change will need to be performed. With the GFO often you can attempt to add an additional sponge in the top to help catch any GFO particles from flowing into the tank. If the issues continue feel free to give us a call and we will be more than willing to help!
Schedule 80 Reducing Bushing 3⁄4” Spigot x 1⁄2” Slip
1⁄2" Male NPT x 1⁄2" Push Connect
As long as it has a reasonable amount of power it should be just fine.
This could work however the Eheim pump connects to 5/8" tubing which will be very very difficult to convert to the 1/2" OD Polyethylene tubing on the reactor. we do not currently have any adapters or components to make the connection. Feel free to let us know if you have any further questions!
Have a great day!
In the Dual reactor the plumbing and all components will be included. With the Dual it is recommended to run the GFO in the first chamber and carbon in the second chamber.
Thanks for getting in touch with us in regards to using Phosguard in our reactors. These would be great for use with Phosguard. Please let me know if there is anything else that we can assist with. Thanks!
If you would like to hard-plumb your reactors, you can certainly plumb directly to the canisters using 1/2" npt fittings.
Have a great day!
The tubing is 1/2" RO tubing which can be found at the link below. Fitting wise, it depends on your setup but elbows are largely it. Perhaps a 1/2" union if you need to connect two pieces together in a straight location (but its usually cheaper just to buy a longer length of tubing then to buy the fitting to connect two together).
Goes inside it. Do i need all gfo and if so what kind of gfo?
The Dual reactor will work great to run carbon for removing color, and odor from the water and GFO for removing phosphate. This is one of our favorite set ups to keep the system running!
Not much more will be needed beside the GFO and Carbon. For nitrate control the best will be regular water changes however there are several options for nitrate control available. Feel free to let us know if you have any further questions!
We do not recommend bio-pellet in the reactor for several reasons. In the second chamber the flow is greatly reduced (the whole unit if placed in the first chamber) The flow on a stand alone bio-pellet reactor is best adjusted independently from carbon and GFO to keep from adding too much flow or too little which either makes the pellets clog or release too much food into the tank. Feel free to let us know if you have any further questions!
We sure do! You can purchase replacement hard-shell cartridges for our reactors at the link below!
Whether you are using one media or both, it's totally fine to flush your media prior to running on the tank. We prefer to do so after the media is inside of the reactor by turning it on and running the initial output into a bucket. We demonstrate this briefly in a video at the link below.
https://www.youtube.com/watch?v=ezQfrJeVZXQ (media flush is around the 4 minute mark).
Hope this helps!
From my calculations, you would need about 2 cups of Standard GFO and 0.81 cups of ROX 0.8 Carbon.
I am sorry to hear about the reactor leaking, You most likely are not doing anything wrong however the connections sometimes need to be removed and reinserted to make a proper seal with the quick connect. If the issue persists feel free to give us a call and we will be more than willing to help!
Does it matter which media flow hours through first?
How does it flow through each, outside down to bottom then up middle?
The reactor has labeled "IN" and "OUT" ports but you can flip the bracket if you require the feed pump to be on the opposite side.
It does not matter which media is placed in the first canister but many people find it easier to tumble their GFO by placing it in the first canister and holding their carbon between sponges in the second.
When run as recommended, the water flows into the reactor, down around the outside of the refillable canister and then up through the bottom of the canister.
Unfortunately the dual reactor would be a little small however could work with ROX 0.8 carbon and High Capacity GFO. On a larger tank such as 200 we recommend more room in the reactor with the Jumbo BRS reactor or even the Phosban 550. Feel free to let us know if you have any further questions!
We do have replacement pads available (Listed in the link below). Unfortunately we do not have replacement screens available. Feel free to let us know if you have any further questions!
I have included a simple link below for the instructions on removing the fittings but it sounds as if you already know the general way to disconnect them.
I have included a few items below which can be added to the tubing to make it easy to disconnect which not dealing with the mur lok fitting.
1/2" Female Thread Cam Lever Coupling - D
1/2" Female Thread Cam Lever Adapter - A
1⁄2" Male NPT x 1⁄2" Push Connect ( you will need 2)
Yes they are connected in series and will both have the same flow rate.
There isn't really a right way or wrong way here. Your going to cycle the tank over so many times over the coarse of a day, week, etc that I would just plumb it in the most convenient way possible. Generally this is going back to the same chamber you pumped it from as then you don't have to worry about any odd siphoning issues or anything like that. Your looking for the least amount of flow that keeps the GFO from turning into a big brick, so long as it hasn't solidified into a block your good to go :-)
The reactor can be placed anywhere in the sump or out of the sump. It is sealed and will not leak if mounted externally. Feel free to let us know if you have any further questions!
While it is possible the flow rates would be different from chamber to chamber and impact the performance. ideally separate pumps or a larger reactor will be needed.
Due to the great deal of pressure needed to force water through the carbon block this would not be possible with an ordinary water pump. Also, the small pore size would quickly clog as detritus from your system was pumped through the block. I would stick with one of our granular carbons.
I hope this helps!
Have a great day :)
You can attempt to move the position of the canisters to adjust so they are not next to each other if needed. Other medias can easily be used in the reactor without issue. Feel free to let us know if you have any further questions!
You will not be able to run Bio pellets in the standard carbon or GFO reactors. They will be a