MBR127 Macroalgae Reactor - Skimz

MBR127 Macroalgae Reactor - Skimz
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MBR127 Macroalgae Reactor - Skimz

86% Recommend this to a friend (6 of 7)

SKU: 210554

Out of Stock

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What's This?

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Quick Overview

Grow macroalgae without a refugium!

Growing algae like chaetomorpha will greatly help your reef aquarium with nutrient issues like nitrate and phosphate. The Skimz MBR127 Macroalgae reactor is designed to be placed in any sump and includes a LED lighting system designed for algae growth.

Dimensions - 7" L x 7" W x 17" H

  • DC Controllable Quiet Pro Pump

  • Quartz Sleeve

  • LED Lighting System

  • Integrated algae containment plates


Full Details

Refugiums are a proven nutrient reduction method that grow specific algae like chaetomorpha that intake nutrients such as nitrate and phosphate. However, refugiums take up a lot of space, usually make a mess of your sump, and they are not efficient at directing flow through the algae. The Skimz MBR127 Macroalgae Reactor allows you to grow algae within a contained system, letting you have full control of the flow rate through the reactor and direct contact with the LED lighting system.


LED Lighting

All Skimz Macroalgae Reactors include a high power LED lighting system that is encased in a crystal clear quartz sleeve. Quartz sleeves provide the highest optical clarity allowing much more light to pass through when compared to typical glass. The LEDs were selected to provide excellent nutrient intake while providing rapid growth. As water flows through the reactor and contacts the quartz sleeve, it will actively cool the LED lights. We do not recommend turning the light on without water flow through the reactor. 


Controllable Quiet Pro DC Pump

The included DC pump gives you full control of the flow through the algae. The highly efficient Quiet Pro DC pumps run extremely quiet, using a brushless 6-pole synchronous motor. They also utilize a slow start-up mode that gradually builds up speed over the duration of about 20 seconds. With 20 different speed settings, dialing in the reactor is as simple as pushing up or down on the pump controller. 


Max Tank Volume Recommendation - 100 Gallons

The size of macroalgae reactor your aquarium requires will vary depending on the amount of nutrient reduction needed. We suggest using the largest macroalgae reactor you can fit in your sump. 



Dimensions - 7" x 7" x 17"

Min Water Level - 2.75"

Reactor Total Volume - 0.85 Gallons (approx)

Number of LEDs - 36 LEDs

LED Colors - Red, Blue, White

Pump Max Flow - 320 GPH

Pump Max Power - 13W


What's Included?

1x MBR127 Reactor

1x QP1.2 Skimz Quiet Pro Pump

1x Pump Controller

1x LED Lighting System

1x LED Power Supply

1x Pump Power Supply


7 Items

  • Mixed Reviews By Chris on 8/25/2017

    I bought two of these units, one for each tank. On my SPS tank, I used it to replace an algae scrubber and it is not pulling out as many nutrients as the scrubber did. So much so in fact that my tank has gone through a bad decline. On my 93g softie tank, this reactor actually has problems growing algae. I keep having to replace algae in this reactor from the excess I strip from the first one.

    I think this product works well, and is well built, but I would not trust it to handle any sizable nutrient export needs.
  • Awesome and easy By Matt on 8/23/2017

    I noticed with the O-ring if you wet the O-ring a little bit and take the top acrylic part and kind of prove it around a little bit it'll go into place by itself when it's dry the O-ring will tend to roll that's why it doesn't say in the play so wet the O-ring wet the acrylic top portion and kind of move it in a circular motion until it's all in place and then look on the side and make sure it's flat I just started using this two days ago so I haven't noticed any channel Grove but I did notice some Cheeto breaking apart and getting stuck in the intake which was a little frustrating at first putting out that has stopped the only problem is I have very little room underneath in the r200v shop sump so it's kind of hard to see if there's any growth until it literally reaches the top so I'm just going to Hope and have faith and it's going to be growing I've always had bad luck with Cheeto but considering that it's an LED with the correct colors for macro algae I hope this works out well because the build is fantastic I have 120 gallon tank but bought the smaller model due to financial constraints but definitely excellent quality an excellent design
  • Great little reactor but leaky By Asonitez on 8/17/2017

    I have this installed on my reef and it seems to be working well. Just take note the seal around the quartz led portion did not make a good seal for me. it leaked from the top alot. I'm not sure if this is how its designed but mine certainly leaks from the top.
  • Great Product By Mike on 8/9/2017

    Have had these running in two separate tanks for a couple months now. Very happy with the results and how clean the sumps stay as a result of the self contained units. The nutrient levels in both tanks are well controlled as advertised. The only small downside is the top O-ring. When it comes off during maintenance it takes finesse to get back in place.
  • Works great! By Dayna on 6/19/2017

    So I've had this set up for about 2 weeks running for 7 hours after my lights go out. I started off with a tiny amount of chaeto and it has already doubled in size and I'm seeing a decline in phosphates. I was worried about heat being an issue but it gives off none. My only issue is the o-ring is a little tricky to replace, but nothing major. It's also a little bulkier than I was expecting so it's a snug fit for a small sump but well worth it for the natural removal of excess nutrients. All in all, it looks sharp and is a much cheaper alternative to the Pax Bellum.
  • Clean and Functional By Insane on 5/13/2017

    Easy to install. O-ring on the top seal can be tricky. In a little over 2 weeks there has been visible growth the chaeto. The sump on my RedSea max 260 makes this a sleak option and a clean looking setup. I plan on getting on for my new 180 tank.
  • Build Quality is amazing By Eric on 5/5/2017

    I own several Skimz products and I am always impressed by their build quality, this item is no exception!


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Product Questions

Do 7x7x17 dimensions take into account white "flower like" plates, which used to join top and bottom part or 7 is just diameter of black tube ? I've limited space in sump (emarald 26) and I had issue with skimz before, when their documented dimensions didn't include "outside" parts extending from main body
Question by: Alexey on May 28, 2017 2:13:00 PM
Those dimensions do take into account the flared mounting plates. The reaction chamber itself is about 4.5", and the plates at their widest are about 7".

Happy reefing!
Answer by: Zack (Admin) on Jun 5, 2017 4:47:00 PM
1) You would have to seed the reactor with Chaetomorpha?
2) Describe the water inlet and outlet.
3) The top of the reactor would have to be out of the water?
4) The picture shows it lights up when in use. Is that the case or just a dramatization?
Question by: LJT on Apr 28, 2017 9:59:00 AM
Hey there,
Chaetomorpha and other macro-algae do require a cutting or tissue sample to get the algae culture started. From there, the algae should grow and fill in the reactor as nutrients are available. The reactor works through an up-flow design and the water is returned back to the bottom internally and will exit at the bottom. Because the light's wiring connections are at the top of the canister, you will need to ensure that these are above the water. The reactor utilizes internal LEDs to provide light to the algae and will produce a reddish light with the idea wavelengths to promote plant/algae growth.

Happy reefing!
Answer by: Zack (Admin) on May 1, 2017 5:29:00 PM
What macroalgae is suggested with this reactor? Have you considered having a starter kit? Is it worth a brstv episode to review this and other products which substitute for a refugium?
Question by: Mike on Apr 28, 2017 5:15:00 PM
Hey there,
This reactor can be used with a variety of macro-algae types, but the most popular and easiest to find by far would be the Chaetomorpha types. I'm afraid we really don't get into selling any livestock and as a result wouldn't really be able to offer a complete starter package. There are lots of sources both locally and online that should be able to provide you with a small starter culture.

Happy reefing!
Answer by: Zack (Admin) on May 1, 2017 5:50:00 PM
I am very pleased with this purchase. How often should I perform maintenance and what would that be? Will the algae need to be manicured at some point?
Question by: Mike on May 13, 2017 10:20:00 AM
Hey there,
Glad to hear you're liking your new reactor! We've been very pleased with the results we've seen so far as well. The maintenance interval will depend quite a bit on your nutrient levels in your tank, but a good starting point would probably be every 1-2 weeks. You will need to periodically harvest a portion of your algae mass so that you are completing the process of exporting the bound-up nutrients in the algae bio-mass, and also providing space for new growth.

Happy reefing!
Answer by: Zack (Admin) on May 15, 2017 4:15:00 PM