BRS GFO & Carbon Reactor - Dual

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Easy to use, setup and maintain. Perfect for utilizing GFO and Carbon in the aquarium. No annoying thumb screws and leaky lids like other reactors. BRS recommends a Cobalt Aquatics MJ1200 pump to operate this reactor. Sold separately or packaged with the pump. Choose a different pump depending on mounting height and amount of media used. Not for use with biopellet media.
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  • Quick Overview
Easy to use, setup and maintain. Perfect for utilizing GFO and Carbon in the aquarium. No annoying thumb screws and leaky lids like other reactors. BRS recommends a Cobalt Aquatics MJ1200 pump to operate this reactor. Sold separately or packaged with the pump. Choose a different pump depending on mounting height and amount of media used. Not for use with biopellet media.More )

BRS GFO & Carbon Reactor - Dual

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BRS GFO & Carbon Reactor - Dual
SKU: 204181
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BRS GFO & Carbon Reactor - Dual with MJ1200 Pump
SKU: 300181
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Product Questions

Would running one of these types of reactors be overkill on a Biocube29? Im wanting to run both GFO and Carbon and dont think the innovative marine will do so. Would also like something that I can use when i upgrade to a 90 this spring.
Question by: Chris on Dec 20, 2013 4:05:00 PM
Hey Chris,
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.
Answer by: Bulk Reef Supply on Dec 20, 2013 4:05:00 PM
What's the best way to connect a pump to the reactor? I have an extra Maxi jet 1200 I thought I'd use, but the outlet is exactly the same size as the tubing for the reactor and the ½" reactor tubing won't stretch to fit over it.
Question by: Patrick on Dec 3, 2013 5:18:00 AM
Hey Patrick,
All it takes is a 1/2" push connect union which the reactors themselves come with. Otherwise I have them linked below as well.
http://www.bulkreefsupply.com/catalog/product/view/id/2030/
Answer by: Bulk Reef Supply on Dec 3, 2013 5:18:00 AM
Considering a brs carbon and gfo dual reactor. What is the gfo component and what does it do. Thanks brs team you guys rock
Question by: John on Nov 27, 2013 3:00:00 AM
Hey John,
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
http://www.youtube.com/watch?v=M6uXz_G1xiA
Answer by: Bulk Reef Supply on Nov 27, 2013 3:00:00 AM
which replacement pads should I purchase for this reactor ?
Question by: Guy on Sep 26, 2013 2:32:00 PM
Hey Guy,
You would want to use these replacement filter pads:
http://www.bulkreefsupply.com/brs-reactor-replacement-pads-hard-shell.html
Answer by: Bulk Reef Supply on Sep 26, 2013 2:32:00 PM
what is this used for
Question by: angelo on Apr 11, 2014 6:09:00 PM
It is generally used for GFO and carbon, though folks use it for other types of media.
Answer by: Bulk Reef Supply on Apr 11, 2014 6:09:00 PM
Looking to buy a couple of the ball valves included with this reactor. I don't see them listed separately on the site.
Question by: Lance on Oct 2, 2013 4:42:00 PM
Hi Lance,
They are 1/2" inline ball valves. They can be found right here:
http://www.bulkreefsupply.com/mur-lok-ro-inline-ball-valve-push-connect.html
Answer by: Bulk Reef Supply on Oct 2, 2013 4:42:00 PM
Hello,
I will be upgrading my tiny 14 gallon tank to a nice 50 gallon soon. Is this product recommended for a brand new tank?
Question by: Hank on Mar 23, 2014 8:13:00 PM
Hi Hank,
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.
Answer by: Bulk Reef Supply on Mar 23, 2014 8:13:00 PM
Hello there I would like to know that.can I use dual go and carbon reactor for my freshwater refugium sump and what type media it should use.thank for helping me.
Question by: phuoc nguyen on Mar 28, 2016 6:00:00 PM
Great question!
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!
Answer by: Connor (Admin) on Mar 29, 2016 2:51:00 PM
Will the MJ-1200 be able to push water down 30inches, through the reactors, then up 30inches? Just want to make sure the pump will be strong enough.
Question by: Lola Knudsen on Feb 7, 2016 5:11:00 AM
Great question!
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!
Answer by: Connor (Admin) on Feb 10, 2016 6:50:00 PM
My dual reactor slowly fills up with air over a day. I have to adjust to zero flow, let the water level rise, then slowly turn on the flow to push the remaining air out. Any recommendations?
Question by: Rik on Jun 26, 2014 4:35:00 AM
Hi Rik,
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 :)
Answer by: Bulk Reef Supply on Jun 26, 2014 4:35:00 AM
Hi Guys,

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.

Thanks
James
Question by: James on May 8, 2016 12:11:00 PM
Great question!
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!
Answer by: Connor (Admin) on May 10, 2016 6:00:00 PM
I am in the process of setting up a 150g tall reef. Would these reactors be able to handle this size tank with a medium to mid heavy bioload?
Question by: Mynor on Apr 24, 2016 3:18:00 PM
These will certainly work well! You will want to consider higher quality media such as ROX 0.8 Carbon and GFO as your main source.
Answer by: Connor (Admin) on Apr 27, 2016 1:52:00 PM
I just purchased the BRS GFO & Carbon Reactor but I am wondering if the flow is the same for the carbon as it is for the GFO how can I ensure that the flow will not push the GFO out into my sump?
Question by: Jeff on Mar 29, 2016 11:05:00 AM
Great question!
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!
Answer by: Connor (Admin) on Mar 30, 2016 11:44:00 AM
Hi I have a red sea 350 reefer (93 G total) I want to run gfo and rox 0.8 carbon what reactor would you recommend is the better choice.
1. BRS GFO & Carbon Reactor – Dual
2. BRS GFO & Carbon Reactor - deluxe
Question by: MIGUEL VILLALOBOS on Mar 15, 2016 11:18:00 PM
Great question!
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!
Answer by: Connor (Admin) on Mar 16, 2016 11:08:00 AM
I have just a single carbon reactor now and I want to switch to the dual reactor is it ok to run the gfo all the time like I do with my carbon? Still new to all this so I just keep researching.
Question by: Jason on Feb 8, 2016 11:08:00 AM
Great question!
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!
Answer by: Connor (Admin) on Feb 10, 2016 5:36:00 PM
Hello,
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

Bill
Question by: Bill Ramey on May 9, 2016 8:01:00 AM
Great question!
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.
Answer by: Connor (Admin) on May 11, 2016 5:37:00 PM
I was interested in getting a reactor for my 90G reef tank. Which reactor would you recommend? The single or the dual?
Question by: Dylan on Jul 11, 2014 3:09:00 AM
Hi Dylan,
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.
Answer by: Bulk Reef Supply on Jul 11, 2014 3:09:00 AM
I been using it for a week and I don't see my water look clean The flow it's got to be very low so the gfo don't go into my tank oh good may fix the problem
Question by: Freddy on Jan 13, 2016 10:03:00 PM
Hey there!
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!
Answer by: Connor (Admin) on Jan 14, 2016 11:42:00 AM
I currently own this reactor and really like it! I noticed it resembles a simplified RO/DI unit and was wondering if it's possible to convert my old RO unit into another reactor similar to this one. (I try to recycle and reuse old equipment as much as possible
Question by: Shara Armstrong on May 9, 2016 8:46:00 PM
Great question! While there certainly is some resemblance, the fittings used for our RO units are 1/4" while the reactor uses 1/2" to allow for greater flow. Unfortunately because the ports on the RO housings are only 1/4" you likely won't be able to get enough flow enable useful function as a reactor.
Answer by: Carter (Admin) on May 10, 2016 5:32:00 PM
i have a 264 gph submersible pump, would that be enough to work for this?
Question by: Devon on Jul 21, 2014 6:07:00 AM
Hi Devon,
As long as it has a reasonable amount of power it should be just fine.
Answer by: Bulk Reef Supply on Jul 21, 2014 6:07:00 AM
Could a eheim 1000 work for this?
Question by: James cross on Mar 19, 2016 7:23:00 PM
Great question!
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!
Answer by: Connor (Admin) on Mar 21, 2016 5:14:00 PM
Will the pump that comes with this reactor work for a 500 gallon tank? Or is it best to use it in the sump?
Question by: King on Jun 5, 2016 5:29:00 PM
The pump is rather small and not recommended for large head height. We recommend running from the sump instead.
Answer by: Connor (Admin) on Jun 9, 2016 3:18:00 PM
Does the Gfo and carbo duel reactor come with the tubing to hook it up? And can you run carbon and Gfo at same time ?
Question by: Jeff on Jan 29, 2016 8:25:00 AM
Great question!
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.
Answer by: Connor (Admin) on Feb 9, 2016 2:24:00 PM
I'm going to need longer tubing due to it being placed underneath my tank. What size tubing do I need? What else will I need such as elbows to route the cords better?
Question by: Vincent on Apr 29, 2014 6:11:00 PM
Hi Vincent,
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).
http://www.bulkreefsupply.com/catalog/product/view/id/969/
Answer by: Bulk Reef Supply on Apr 29, 2014 6:11:00 PM
Hi im having a high phosphate and nitrate problem and its causing algea in my tank. I dont have a sump. Im new to this all. This is what is needed to helo lower them right? And i was buying the reactor dual with the pump combo. What else will i need for full setup. Want to mount it in the cabinet below aquarium. And not sure what stuff
Goes inside it. Do i need all gfo and if so what kind of gfo?
Question by: jenny Guttromson on Apr 16, 2016 12:44:00 PM
Great question!
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!
http://www.bulkreefsupply.com/brs-bulk-gfo-granular-ferric-oxide.html
Answer by: Connor (Admin) on Apr 20, 2016 12:55:00 PM
I have read all the info available for this piece of equipment, and i have read all the questions trying to understand why, but what exactly makes this reactor incapable of running high quality carbon in the first chamber and bio pellets in the second? it looks like the same type of construction on your specific bio pellet reactor, and i would like to better understand the differences!
Question by: Adam on Apr 16, 2016 2:59:00 PM
Great question!
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!
Answer by: Connor (Admin) on Apr 20, 2016 1:55:00 PM
I ordered this and the connectors leak where the tubing goes into the reactor. Am I doing something wrong ?
Question by: chadb202 on Dec 21, 2015 8:47:00 AM
Hey there,
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!
Answer by: Connor (Admin) on Jan 6, 2016 5:56:00 PM
Can you use purigen in one chamber instead of carbon along with gfo in the other chamber? How would that affect a 75g reef?
Question by: Josh on Jun 20, 2016 4:32:00 AM
There is no reason you cant use purigen in the reactor as well. Will simply run the media in a reactor style. Typically you will want GFO first to adjust the tumble correctly.
Answer by: Connor (Admin) on Jun 21, 2016 5:40:00 PM
I have a 200 gallon tank and was wondering if this dual reactor will be enough capacity to hold both GFO and Carbon to make it beneficial towards filtering my tank.
Question by: Louis Tong on Feb 25, 2016 9:49:00 PM
Great question!
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!
Answer by: Connor (Admin) on Feb 26, 2016 9:53:00 AM
Hello, i need replacement sponges and screens for the Bulk Reef Supply dual reactor. Do you sell these? What item number is it?

Thanks
Question by: TRavis on Dec 22, 2015 8:04:00 AM
Great question!
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!
SKU# 204186
http://www.bulkreefsupply.com/brs-reactor-replacement-pads-hard-shell.html
Answer by: Connor (Admin) on Jan 7, 2016 11:07:00 AM
I have this reactor. I find it really hard to disconnect the tubing from the push connect fittings. I need to disconnect the tubing whenever I change media so I can connect a longer outlet tube to drain into a waste bucket. Is there a trick to disconnecting the push connectors? I know you have to push in the connector but it is hard. I tried cutting a ring of pvc pipe to fit around the tubing to use to push in the connector, that helps a little, but it is still hard. Do they make a tool to do this?
Question by: Michael Ryeburn on May 2, 2016 11:48:00 AM
Great question!
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
SKU: 209945

1/2" Female Thread Cam Lever Adapter - A
SKU: 209927

1⁄2" Male NPT x 1⁄2" Push Connect ( you will need 2)
SKU: 100003

http://www.bulkreefsupply.com/instructions/article/Installation-Instructions-for-Mur-lok-Push-Connect-Fittings
Answer by: Connor (Admin) on May 3, 2016 6:37:00 PM
Hello. Does the water through the GFO container and the one flowing through the Carbon container have the same flow rate?
Question by: Peng on May 8, 2014 7:46:00 AM
Hi Peng,
Yes they are connected in series and will both have the same flow rate.
Answer by: Bulk Reef Supply on May 8, 2014 7:46:00 AM
So my question is about routing the plumbing.... Is there a right or wrong way? I have a sump and I have it it coming out of the return side of the sump and have it going right back in the same chamber.... Is this bad or could there be another way? Also I have a maxi jet 1200 powering it.. But it's wide open and doesn't seem to be tumbling hype gfo very much... Any help would be great... Thank you.
Question by: David on May 9, 2014 8:38:00 AM
Hi David,
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 :-)
Answer by: Bulk Reef Supply on May 9, 2014 8:38:00 AM
My question is if you have to put the reactor inside sump or could you get away putting it outside the sump since I don't have enough space for the reactor inside the sump.
Question by: Juan Bohorquez on Mar 10, 2016 1:50:00 PM
Great question!
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!
Answer by: Connor (Admin) on Mar 10, 2016 4:35:00 PM
Hi. I have a 200g mixed reef tank but I feed pretty heavily since I have some big tangs. My phosphates have been pretty high and can only put in 1.5 cups of the high capacity GFO so it tumbles properly. Can I put in this GFO in the carbon chamber as well and run double GFO with no carbon? Thanks.
Question by: Duy on Apr 18, 2016 4:43:00 PM
Great question!
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.
Answer by: Connor (Admin) on Apr 25, 2016 6:54:00 PM
Could you use a carbon block instead of the granular carbon in the carbon part?
Question by: Brian on Aug 25, 2014 8:36:00 AM
Hi Brian,

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 :)
Answer by: Bulk Reef Supply on Aug 25, 2014 8:36:00 AM
Is it possible to make this reactor have separate flows to each chamber so to tire each media different. I hope that makes since. Also is it possible to use a a different media other then GFO for the removal of phosphates.
Question by: James on Jan 20, 2016 11:54:00 PM
Great question,
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!
Answer by: Connor (Admin) on Jan 27, 2016 7:59:00 PM
Would you be able to run a combo of GFO and carbon in the first chamber and biopellets in the 2nd? Or would you need to have 2 separate reactors for this? Thanks in advance.
Question by: Daniel on Apr 5, 2016 3:20:00 PM
Great question!
You will not be able to run Bio pellets in the standard carbon or GFO reactors. They will be a bit of a head ache and clog very quickly. Feel free to let us know if you have any further questions!
Answer by: Connor (Admin) on Apr 5, 2016 5:54:00 PM
What size tanks are these rated for?
Question by: Lance Barnes on Jan 21, 2016 2:48:00 PM
Great question!
These will work on a wide variety of sizes depending on the amount and type of media used. Up to 200+ gallons when the High Capacity GFO and ROX 0.8 carbon are used. Feel free to let us know if you have any further questions!
Answer by: Connor (Admin) on Jan 27, 2016 7:36:00 PM
Is this big enough for a 90 gallon aquarium?
Question by: TJ on Apr 19, 2016 4:34:00 PM
Great question!
This will certainly work well for a 90 gallon system. Feel free to let us know if you have any further questions!
Answer by: Connor (Admin) on Apr 19, 2016 6:21:00 PM
I need to replaced the elbows on the reactor what size do I need?
Question by: Justin Rivera on Jul 8, 2016 6:03:00 AM
The elbows that attach directly to the head of the canister are ½” Stem x Push Connect Elbows. All the fittings on the BRS dual reactor will be ½”.
http://www.bulkreefsupply.com/mur-lok-ro-elbow-stem-x-push-connect.html
Answer by: Charlie (Admin) on Jul 8, 2016 7:45:00 AM
I have a couple of questions. First, the height listed. Is that the height of the canisters only or does that number include the bracket? Also, do the instructions tell you how much media is needed for your size tank? I have a 40 breeder. Thanks.
Question by: David on Mar 27, 2014 7:19:00 PM
Hi David,
The height is total. The amount of media you use isn't dependent on the reactor (though it has a max capaicty). The amount of media you use is dictated by the size of your aquarium and what actual media you are using. Instructions would be on the container of your media, but you can use the BRS calculator on the website to calculate out the amount for any of our BRS brand medias ahead of time. You can find it at the top of the page or at the link below:
http://www.bulkreefsupply.com/reef-calculator
Answer by: Bulk Reef Supply on Mar 27, 2014 7:19:00 PM
Bought the Dual reactor a couple months ago. The GFO is a little too much for the tank right now, (I want some chaeto to help with the Pods in the tank) so I will be pulling the GFO out, but still want to run carbon. Can I add double carbon in the GFO side just to extend the time between carbon changes, or is that a bad idea?
Question by: John on Jun 8, 2014 9:28:00 AM
Hi John,
Its not problem to run the GFO chamber empty but it wouldn't be useful to add twice as much carbon. It would still need to be changed in the same amount of time so it would really just be a waste :-)
Answer by: Bulk Reef Supply on Jun 8, 2014 9:28:00 AM
Where would you place this in the sump? Would you want the return line running into the return chamber of the sump?
Question by: Jake on Apr 7, 2016 2:37:00 AM
Great question!
You can place this anywhere, most will place the pump in an earlier section of the sump and the drain from the reactor into the return section. Feel free to let us know if you have any further questions!
Answer by: Connor (Admin) on Apr 12, 2016 5:08:00 PM
I have a 300 gallon tank with about 80 gallon sump refugium. I am need to decrease nitrates, and possibly phosphates(as the green film is starting to show up on the glass more often) . Would this dual reactor work with sulphur in one and argo(calcium) in the next? I am wanting to replicate a sulphur reactor. Or would you just recommend something else?
Question by: Shawn howard on Mar 26, 2016 1:52:00 PM
Great question!
You can use the dual for GFO and carbon really well! However for sulfur you will want a dedicated nitrate reactor ( to keep the correct flow and gas release). I have included a link below! Feel free to let us know if you have any further questions!
http://www.bulkreefsupply.com/skimz-monzter-nm152-external-nitrate-reactor.html
Answer by: Connor (Admin) on Mar 28, 2016 12:04:00 PM
I bought the brs 2 chamber rector. The gfo/carbon. I have a top fin power head 50. Qmax:171.73 gph max height is 4.75ft the pump is only going to push it up 2ft is this enough power or will I have to purchase a new pump.
Question by: Billy on May 5, 2016 4:50:00 PM
Great question! We recommend a more powerful pump that will supply around 300GPH, here is the pump we recommend: http://www.bulkreefsupply.com/cobalt-mj1200-powerhead.html
Answer by: Carter (Admin) on May 6, 2016 11:45:00 AM
instead of running GFO and Carbon in a 2 stage BRS reactor, can i run carbon and phosguard?
Question by: Steve on Mar 27, 2016 7:30:00 AM
Great question!
That will work just fine with many types of media. Feel free to let us know if you have any further questions!
Answer by: Connor (Admin) on Mar 28, 2016 5:52:00 PM
Hey I'm looking into buying this for my 120gallon mixed reef but u need to know the dimensions of it, my sump is pretty large, but I don't have a lot of space to mount inside the cabinet so I'm hoping to just place it in the sump. Thanks
Question by: Ben on Jan 23, 2016 8:29:00 PM
Great question!
With tubing installed and bracket the system will take 11" wide, 15" tall and 5" front to back. Feel free to let us know if you have any further questions!
Answer by: Connor (Admin) on Feb 3, 2016 11:08:00 AM
I need to buy replacement o-rings for the canisters. Do you sell them?
Thanks in advance for any info.
Question by: Sandra on Apr 21, 2015 2:36:00 PM
Great Question Sandra! We certainly do, they can be found here: http://www.bulkreefsupply.com/o-ring-for-10-reverse-osmosis-canisters.html
Answer by: Bulk Reef Supply on Apr 21, 2015 2:36:00 PM
I saw on one of the forums that, the cobalt MJ-1200 that you suggest for these reactors is very loud. If that is the case, can you suggest what size pump(GPH) would be a suitable replacement? My system is super quiet and I would like to keep it that way. Thanks.
Question by: David on Apr 5, 2014 10:57:00 PM
Hey David,
Those folks are confusing the pump with the Marineland Maxi Jet 1200. The marineland pump used to be the go to standard however they took the design to China and ever since those pumps make a very loud rattling noise when used in a reactor or other situation with back pressure. The cobalt aquatics MJ1200 is the old original italian made pump and is the same tried and true quiet and reliable pump we were all used to and the one recommended for the reactors.
Answer by: Bulk Reef Supply on Apr 5, 2014 10:57:00 PM
can i run this dual reactor using one of my extra valves from my return pump as i install extra gate valves? or do ii have to use a separate pump?
ken
Question by: ken sugzda on Jul 11, 2016 5:20:00 PM
Hi Ken,
The dual reactors can be run off of your return pump. You will just need to convert down to ½” female NPT threads and then with the fitting in the link below (sku 100003) will thread into your return plumbing and allow the push connect tubing to be used with the reactor.
http://www.bulkreefsupply.com/mur-lok-male-npt-x-push-connect.html
Answer by: Charlie (Admin) on Jul 12, 2016 7:15:00 AM
I am looking to buy the Dual GFO/Carbon reactor. How often should I replace the GFO in the reactor? and does it release phosphates back into the water once it has reached it usefulness?
Question by: Travis on Jan 31, 2014 5:47:00 AM
Hi Travis,
It should be changed once its capacity has been reached. The best way to know this is to monitor your phosphates with an easy to read phosphate meter like a Hanna phosphate checker. Usually this is about 4-6 weeks but entirely depends on how much phosphates you have, which is almost entirely related to how much you feed. GFO will not release phosphates back into the aquarium however once its reached its capacity it will no longer be removing new phosphate so the levels will begin to rise.
Answer by: Bulk Reef Supply on Jan 31, 2014 5:47:00 AM
Do you sell the sponge disks that hold the media in place separately?
Question by: Michael on Feb 3, 2014 7:33:00 AM
Hey Michael,
I think these are what your looking for:
http://www.bulkreefsupply.com/catalog/product/view/id/1665/
Answer by: Bulk Reef Supply on Feb 3, 2014 7:33:00 AM
could i run the duel gfo and carbon reactor with biopellets in one chamber and carbon/gfo mixture in the second, or would the pressure the biopellets need to tumble be too much.
Question by: Joe on Feb 24, 2014 11:55:00 AM
Hi Joe,
The dual reactor is not compatible with biopellets. As much as we would wish otherwise, biopellets do not play nice with other medias and need to be run in an entirely separate reactor :-)
Answer by: Bulk Reef Supply on Feb 24, 2014 11:55:00 AM
What size carbon can use on dual reactor. U have multible. What gfo
Question by: mike on Apr 28, 2014 8:43:00 AM
Hey Mike,
Most folks use the lignite carbon in the reactor as its easy to work with in that setup. As far as GFO goes, most people use the standard GFO. The only reason to use the high capacity GFO would be if you need more then fits in the 2 cup capacity of the reactor, because the HC is twice as dense it goes twice as far for the same volume.
Answer by: Bulk Reef Supply on Apr 28, 2014 8:43:00 AM
Is there any way that I can hang this on the back of my JBJ NANO 28 gallon?
Question by: Bryant on Mar 20, 2014 6:16:00 PM
Hi Bryant,
Unfortunately the dual reactor doesn't have a hang on back configuration. It could either be mounted to the wall,stand, etc behind the tank or even just set on a desk. If you need something that has the ability to hang on the rim of a tank then I would look at the Two Little Fishies Phosban Reactor. It has a hang on back mount. The 150 will have plenty of capacity for a tank your size.
http://www.bulkreefsupply.com/catalog/product/view/id/482/
Answer by: Bulk Reef Supply on Mar 20, 2014 6:16:00 PM
I have a 150 g tank with a 25g sump below the tank, is this a large enough unit and how often would I need to change media, no phosphate problem now but looking to add fish and corals, I have 6 fish now 3" long. Thanks
Question by: jammerdave on Mar 30, 2014 6:00:00 PM
Hey there,
The reactor has a fixed capacity (two cups of media that needs to tumble, like gfo, and 3 cups for media that doesn't, like carbon) so how big it is really depends on the media you plan to run and how much you need. What medias were you planning to put in the reactor?
Answer by: Bulk Reef Supply on Mar 30, 2014 6:00:00 PM
Hi, I have a 120 gal tank, with a 30 gal sump. would it be wise to run this unit with both mixtures of gfo/carbon in both canisters vs. gfo in one and carbon in the other?
Question by: Amber on Jan 28, 2014 6:11:00 PM
Hey Amber,
With the dual reactor its best to run GFO in one and carbon in the other. GFO generally is changed less frequently then carbon when its feasible (usually monthly) whereas carbon is changed every 2 weeks. Keeping them separate allows you to do this :-)
Answer by: Bulk Reef Supply on Jan 28, 2014 6:11:00 PM
Interested in the dual phosphate/carbon reactor. Have 100 gal tank with sump, which pump do you recommend? Thanks
Question by: Greg on Mar 30, 2014 4:21:00 PM
Hi Greg,
We recommend the cobalt mj1200 for use with the dual reactor. It plugs right in, works well, and tend to last a long time.
Answer by: Bulk Reef Supply on Mar 30, 2014 4:21:00 PM
Can I run bio pellets in the first chamber and a mix of carbon/GFO in the second?
Question by: Travis on Dec 21, 2013 1:34:00 PM
Hi Travis,
The dual reactor is not compatible with biopellets. For biopellets you would want a separate biopellet reactor. The BRS biopellet reactor works great for tanks under 50g, otherwise something like the octopus BR series reactors are usually the next size up for folks.
Answer by: Bulk Reef Supply on Dec 21, 2013 1:34:00 PM
We have several BRS media reactors that we use interchangably with bio pellets, activated carbon, and gfo. I was looking on the site today to purchase two more, and see that the gfo and carbon reactor is not for use with bio pellet media. My question is what is the difference between the gfo/carbon reactor and the bio pellet reactor?
Question by: Victoria Crow on Nov 19, 2013 6:20:00 AM
Hi Victoria,
The GFO reactor cartridges have sponges (which can be removed) vs the biopellet reactor doesn't have sponges but does include an additional larger fitting for using with bigger pumps as typically biopellets require higher power pumps.
Answer by: Bulk Reef Supply on Nov 19, 2013 6:20:00 AM
I have 185 gal reef tank (SPS, LPS and soft). Would this dual reactor work? I do 20% water changes every 2 weeks. Only parameter that is off is phosphate at .22.

I have 15 medium size fish.
Question by: marco on Sep 10, 2013 1:59:00 PM
Hey Marco,
The capacity of the reactor chambers is 2 cups for GFO. For a tank that size it would work if you were using the high capacity GFO as you would only need 1.5 cups. If you were using the regular GFO you would need 3 cups and then it would not work (then you would want to look at something like the Jumbo reactor or a different manufacturer reactor like the Vertex).
Answer by: Bulk Reef Supply on Sep 10, 2013 1:59:00 PM

Full Details

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

Videos

Reviews

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  • Awesome results By Derek on 7/18/2016

    First off. Build quality is great. Plastic tubing, sucks. Spent 12 bucks and 30 minutes at Lowes. Had spare tubing on hand. Works great. Going to get the mini for bio pellets.
  • Good product By Jim on 7/6/2016

    Nice package set-up was pretty easy. The only complaint is the plastic bracket it should be ok but it would be nice if they offered a deluxe dual reactor with a better mounting bracket. All in all I was very happy with the results easy set-up and my wife without telling her already commented on how clear the water looked 24 hours after install. Buy the best hard GFO and Carbon along with the intake filter pad for the pump and you'll be a happy camper.
  • Quality By Qtr on 7/5/2016

    Ease of use. Solid construction. Very much worth the $$$
  • GREAT PRODUCT By WILLY on 5/29/2016

    EASY TO USE RECOMMEND TO ANYONE; i LIKE THE SEPARATE CHAMBER FOR EACH PRODUCT
  • Great By Ranger on 5/28/2016

    The difference in water quality of just having it on for the first 48 hours was unbelievable great product I recommend it for everyone
  • Great Performer - Great Value By RJS6711 on 4/22/2016

    This is a great performing piece of indispensable reef tank filtration equipment. Since a carbon / GFO reactor is one of the most important components of a reef filtration system, I'm glad I went with the BRS GFO & Carbon Reactor Dual. Pair this with the Cobalt MJ 1200 power head.
  • Required some modification By Sal on 4/10/2016

    Comes with 2 flaws; the reactor leaked from the union joining the 2 reactors and the flimsy bracket needs to be supported by something to keep it level or the water flow will not travel through evenly. I hope brs ditches the plastic bracket for the metal one used on their ro.di systems and begins to add some plumbers tape so customers dont have to disassemble it and do it themselves. After those minor repairs the unit worked great, easy to adjust and very much set it and forget it. I woulda gladly paid a little extra for it coming with a metal bracket though. 2 days running so cant really tell how much impact itll have just yet but im confident it will work great!
  • Great product By Smellsfishy on 4/5/2016

    Bought one of these second hand. Regardless, I love it. Have been batteling algie (various types after a summer away fallowed by a tank move) and this baby is a godsend. A couple month in with this and manual removal....IM WINNING THE ALGIE WAR! Thank you bar for another great product!
  • Great Product By Cave Man on 3/9/2016

    This I found this reactor very easy to setup in less then 5 min. The bracket is a little flimsy but don't let that stop you from purchasing. The only improvement I would make is to install an on off valve at the bottom to drain before you change media.
  • Awesome product By Francis on 3/2/2016

    Tried different reactors but this is the best one so far. Real convenient!
  • Great value and convenient, but not suitable for high pressure applications By rwf on 2/27/2016

    The unit was easy to fill and connect, but leaked like a geyser when connected in parallel with the Iwaki MD20RLT that supplies the chiller. I replaced the fitting between the cannisters with a close coupling from Home Depot and lots of teflon tape, which eliminated the leak between the cannisters, but now the housings themselves were slowly leaking. I was able to throttle the flow through the system using the supplied ball valve so no leak is evident, but it is disappointing the system cannot handle the 20 psi the pump can produce. Regardless, it is now working and I am currently happy with its performance.
  • Good product By BGP on 2/27/2016

    I like the product. It brought my nitrates and phosphates down to levels that I could not test for on my home test kit. However, as mentioned in the video with Ryan from BRS, it is super difficult to dial in the GFO media reactor. The media inside the reactor is separated into two distinct parts. I have tried dialing it in, but it has not worked at all. I wish I could go back and buy to separate reactors to make this easier. The cobalt pump that is included is basically silent. Also, when I received it in the mail and hooked it up as instructed, I had a severe leak in between the two reactors. I had to take the entire set up apart, add a bunch of plumbers tape to the GFO side to stop the leak. After I did my own in home surgery, the leaks are gone. If I could figure out this finicky GFO reactor, I would be much happier with the product and would give it 5 stars. If it wasn't a pain, I would have returned the Dual reactor and purchased something a little different. I am hoping that BRS gets High Capacity GFO in sooner than April and it will fix my problem.

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