Skimz SN123 Monzter Mini Protein Skimmer

Skimz SN123 Monzter Mini Protein Skimmer
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  • Skimz SN123 Monzter Mini Protein Skimmer
  • Skimz SN123 Monzter Mini Protein Skimmer Chamber
  • Skimz SN123 Monzter Mini Protein Skimmer Controller
  • Skimz SN123 Monzter Mini Protein Skimmer Pump
  • Skimz SN123 Monzter Mini Protein Skimmer Gate
  • Skimz SN123 Monzter Mini Protein Skimmer Top
  • Skimz SN123 Monzter Mini Protein Skimmer Base
  • Skimz SN123 Monzter Mini Protein Skimmer Controller and Connectors
  • Skimz SN123 Monzter Mini Protein Skimmer Silencer

Skimz SN123 Monzter Mini Protein Skimmer

84% Recommend this to a friend (16 of 19)

SKU: 208821
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Quick Overview

Skimz Monzter Mini protein skimmer has the smallest DC pump in the compact body that is great for people who have small sumps. With six preset RPMs controller, low wattage, small footprint, the Monzter Mini is the product of the pursuit of simplicity and stylishness.

  • For Aquarium: up to 132 gallons (500L)

  • BRS Recommended for tanks up to:

    • Heavy Bioload (Most Common) - 50 gallons

    • Medium Bioload - 60 gallons

    • Light Bioload - 80 gallons


    Ask a question

    Product Questions

    Will this fit in the Red Sea Reefer Nano sump?
    Question by: Billy on Feb 8, 2016 10:29:00 PM
    Great question
    This should have no issue fitting in the 9" x 8" skimmer area in the sump. Feel free to let us know if you have any further questions!
    Answer by: Connor (Admin) on Feb 9, 2016 6:25:00 PM
    Will this be strong enough for a 75. I see many different ratings. I have
    5 chromis
    1 trigger
    1 coral beauty
    2 small wrasses
    2 cardinals
    3 anthias
    1 hawk
    1 firefish
    And a moderate amount of coral and inverts.
    Question by: Anhony Celano on Apr 26, 2016 10:26:00 PM
    Great question!
    The SM123 would be fairly small on a system of your size. We would recommend the SN143 as a great alternative.
    Answer by: Connor (Admin) on Apr 27, 2016 4:23:00 PM
    Hi, I. Setting up a frag tank that isn't drilled but has an overflow in the back. Will this skimmer fit in a 4.5"x7.5" area with the water level at 7-7.5"?
    Question by: Ezra on Mar 19, 2016 5:41:00 AM
    Great question!
    This skimmer has a footprint of L 6.41"x W 7.36" x H 19.29" and will not be able to fit in a 4.5" area. Feel free to let us know if you have any further questions!
    Answer by: Connor (Admin) on Mar 21, 2016 11:12:00 AM
    what happens when the controller loses power? Will it retain the setting previously on or go to a default?
    Question by: Steve on Jun 6, 2016 6:29:00 PM
    Great question!
    This will save the most recent setting. Feel free to let us know if you have any further questions!
    Answer by: Connor (Admin) on Jun 8, 2016 6:15:00 PM
    When adjusting this skimmer, you can use either the knob on the skimmer body or the pump controller to adjust the water level. Is there a right answer on how to make these adjustments? Do you want the pump to be as high or low as possible while still keeping the water at the right level?
    Question by: John Donahue on Jan 9, 2017 8:51:00 PM
    Great question! Typically during the break-in period I put the pump at 100% power and open the gate valve completely. After the 1-2 week break-in period I start closing the gate valve down until the water in the skimmer body raises up to were the collection cup separates from the skimmer. From there, all you need to do is make minor gate valve adjustments or pump adjustments to meet your desired skimmate collection method (wet/dry) :-)
    Answer by: Randy (Admin) on Jan 10, 2017 11:19:00 AM
    My skimmer makes a loud screeching sound is this normal? Or can I it be fixed by just wiggling the impeller?
    Question by: Conner Knop on Jun 10, 2016 6:09:00 AM
    It is not normal for a skimmer to make more noise than simple pump vibration and bubbles. You will want to open up and remove the impeller to inspect for damage or items stuck to the skimmer impeller. We have both warranty on the skimmers as well as replacement parts available.
    Answer by: Connor (Admin) on Jun 14, 2016 10:45:00 AM
    Does the controller come with the Skimmer or do you have to order it separately? When will this product be available again?
    Question by: John on May 1, 2015 4:23:00 PM
    Great Question John! This skimmer does include a variable speed controller for the pump.
    Answer by: Bulk Reef Supply on May 1, 2015 4:23:00 PM
    What is the minimum and maximum water level for this skimmer?
    Question by: Sean on Mar 28, 2015 10:20:00 AM
    Great Question Sean! For optimal performance, the water in the sump should be
    between 7" and 9".
    Answer by: Bulk Reef Supply on Mar 28, 2015 10:20:00 AM

    Full Details

    Skimz SN123 Monzter Mini Protein Skimmer

    The SN series of protein skimmers are ideal for tanks that do not have a lot of space in the sump available. The footprint is under 6.5" x 7.5" which makes it very easy to fit in almost all locations and sump types.


    Updated VSC1.2 DC Controllable Pump

    All Skims SN123 skimmers now come with the updated VSC1.2 controllable DC powered pump. With multiple power modes, you now have full control over the amount of water and air that are flowing into your skimmer. The updated pump has had the electronic control devices integrated into the controller instead of the motor block like most other DC pumps. That now eliminated the chance of heat or water coming into contact with the sensitive parts of the pump, leading to a much longer life.


    Skimmer Specifications

    • Dimension: L 6.41" (163mm) x D 7.36" (187mm) x H 19.29" (490mm)
    • Body Diameter: 4.72" (120mm)
    • Pump: Skimz Updated VSC1.2 DC
    • Air Intake: 120 – 360 L/h
    • Total Watts: 6 – 12W
    • Operating Depth: 7" to 9.5"



    Items 1 to 12 of 19 total

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    • Good skimmer when pump works! By Renee on 1/5/2017

      Skimmer worked well once I figured out the best adjustment for my system. Unfortunately the pump started messing up over the past couple of months. It will seem to run fine but when paused to feed, it will not start back up. After taking it apart, cleaning and putting it back together, it won't even start up now. And, of course, the warranty was up in October! Noticed they have an improved version for sale now.
    • Silent By CXK03fishtanks on 6/26/2016

      At first when I got this skimmer, it made a terrible loud noise, and could be heard the room over. However, once BRS replaced the defective pump, it was dead silent. You can only hear the pump if all the other equipment is turned off. This skimmer works great, and removes a lot from the water. The only bad thing I have to say, is that the skimmer cup is impossible to come off. This just makes it a little harder to clean.
    • good skimmer but... By jeremy on 6/19/2016

      Just got the skimmer last week ans BRS helped me set it up and get it running. Seems to get a good wet skim after just the first few days. Now the bad...... The seal that hold the the cup on is so tight and hard to get in and out I have broken the gate control knob twice now. Have to call them again tomorrow. and get this fixed. I did use a small about of tank friendly lube but it just too big and it take the force of 1000 men to get the skimmer cup off. Makes me not want to even keep this skimmer because of that. Other than that seems okay, directions are not very good and don't offer much help.
    • Skims Like a Beast By Lukas on 6/14/2016

      This thing performs excellently and has many features you would normally need to pay a premium for. This having been said there are a couple of design flaws. The skimmer cup is tight which is a good thing, but this thing is insanely tight. Without lubrication of some kind it is almost impossible to get off without at least feeling like you're going to break it. The air silencer is attached to the skimmer rather flimsily and it's position next to the ridiculously tight skimmer cup pretty much ensures you are going to bump it, strip the screw out and end up with a loose air silencer. Still a great skimmer otherwise and I will buy Skimz skimmers in the future.
    • Hard to beat for the price By Brian on 6/8/2016

      I have been using Skimz protein skimmers for about 4 years now and they just plain work. Skimz products are well built, and in my opinion, extremely tough to beat at their price point.
    • Awesome By Joshua E on 4/30/2016

      Great skimmer with quick break-in time. I agree with others that the skimmer neck could use some better engineering for easier taking apart and cleaning. Very quiet.
    • Loud loud loud By Adam on 3/27/2016

      Not sure if I got a defective unit, but the pump has developed an incredibly loud vibration. Even taking it apart, cleaning it, and putting it back together didn't help
    • A+ job by Skimz! By Adam on 3/9/2016

      I did quite a bit of research before buying a new skimmer for my 20 long. I wanted something that was able to handle a 75 gallon tank when I upgrade down the road. This skimmer seemed like a good value. Boy was this purchase a great decision! My skimmer has been running on my tank for about a month now and I have nothing but good things to say about it. It was super easy to break in and adjust to a perfect dry skim. The build quality is great for the price, and the controllable quiet dc pump is the cherry on top! My only complaint is that the collection cup can be hard to remove. Other than that minor detail, this is the best skimmer I've owned...not that it had much competition with my coralife skimmer :)
    • SN123 is good skimmer By BobbyB323 on 1/20/2016

      Skims well. Bit tricky to dial in because there's three adjustments; pump, air and water level. Break in according to instructions. After break in recommend air half open (1-1/2 turns from closed), pump at speed 6 of 8 and adjust water level to bottom of cup. Presto!
    • Recommended By Sam on 1/17/2016

      BRS staff recommended me this and it works great, assembly was pretty straightforward too.
    • Excellent Value For The Money By Neil on 12/19/2015

      First the good. A few months ago I purchased a Skimz SM163 for my larger tank. Like that one the SN123 quality is not the same as a Vertex or Reef Octopus but for the money it is a solid unit. It did take me a long time to tune in the SM163 so I took the advice of another reefer and ran the SN123 overnight in vinegar. What a difference. In a few days the unit was pulling some nice skimate. It's still early but I think the SN123 will do the Job. Now for the bad. Like others who have a unit using this style of collection cup. getting it on and off is a bear. I had to remove the unit from the sump to get the cup on and off. I spoke to BRS about this and their suggestion was to use some silicone grease. I bought some and it does seem to help. It's still to early to tell if I'm going to constantly apply grease or will this one application do the job. Doing this is not a big deal but I get a little perturbed when I have to spend extra time and money to make the product I purchased work properly. If BRS and Skimz is aware of this issue, why not enclose a small tube of silicone grease with the unit. This would make life much easier for everyone. This issue is the only reason I gave the SN123 4 stars instead of 5
    • Loving it so far By Orlando on 12/14/2015

      I held off on buying this skimmer for a long time because of some reviews I saw. So far I am glad i decided to go for it anyway. It does not feel as weak as some reviews made me think it was.
      It has taken me longer to tune it in than my old cads skimmer but it is working much better already. The cap is hard to get off but once you do it a few times you will know how to take it off pretty easy. I have a very small space for a skimmer in my sump 7x8 and this skimmer almost fills it all with about 1 inch to spare. The picture does not do justice to the size of this skimmer. Also this thing is pretty simple to take apart.