Skimz Monzter SM203 DC Internal Protein Skimmer

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Skimz Monzter SM203 DC Series Protein Skimmer
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  • Skimz Monzter SM203 DC Series Protein Skimmer
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Skimz Monzter SM203 DC Internal Protein Skimmer

82% Recommend this to a friend (9 of 11)

SKU: 207996

reg. $499.99

Special Price: $348.99

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Quick Overview

The Skimz D-Series SM203 DC Internal Protein Skimmer gives you high performance skimming at a great value. Adjustable DC VSC5000 pump in housed within the skimmer body resulting in a compact design.

  • Manufacturer rated for tanks up to 528 gallons (2000 Liters)

  • BRS Recommended for tanks up to:

    • Heavy Bioload (Most Common) - 190 gallons

    • Medium Bioload - 240 gallons

    • Light Bioload - 320 gallons

  • Air intake: 238-476 GPH (900-1800 LPH)

  • Operating Depth: 7" to 9.5"

  • Low power consumption and high performance

  • Skimmer draws water directly from sump

  • Skimz VSC5000-DC Pump with 6 speeds and feed mode shut off


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Full Details

Skimz Manufacturer's Manual



  • Integrated cylindrical and cone shape chambers help reduce bubble bursting and surface agitation
  • Bubble Plate Design - reduces turbulence
  • Maximum air flow capacity in compact design
  • Micro-adjustable valve for precise water level control
  • Twist-lock neck for easy collection cup removal
  • Quality construction - CNC machined parts and Georg Fischer fittings
  • Internal application - no feed pump required


Skimmer Specifications:

  • Base Diameter: 7.87" (200mm)
  • Foot Print: 9.21” x 9.21” (234mm x 234mm)
  • Total Height: 21.5” (545mm)
  • Cup Diameter: 200mm


VSC5000-DC Pump Features:

  • Six RPM presets
  • Feed mode with shut off timer
  • Air Draw: 238-476 GPH (900-1800 LPH)
  • Power Consumption: 13-35 Watts


Skimz Warranty

  • Warranty for Original Purchaser against defective material and workmanship that occurs during normal use.
  • 2 Year Warranty on skimmer body
  • 1 Year Warranty on pump



11 Items

  • Pump is junk! By Ron on 8/28/2015

    Pump died after 13 months! I see I am not the only one with this problem. I have a bubble magus skimmer that's been running on the original pump for 5 years.
  • This skimmer is a Beast By Joe on 5/1/2015

    This is my first new skimmer I have purchased. It took a little time to tune in, but once it was it skims like a beast. Everything in my tank looks so much better now. Love this skimmer and would and have recommended it to everyone in my saltwater club.
  • Excellent with one exception By John on 3/27/2015

    I love everything about this skimmer except one little thing; Mine didn't come with instructions other than how to put it together. I have no idea what the controller does. This may be common sense to most people but this is my first internal skimmer in 10 years of reefing so I am learning as I go. On the plus side, it is super quiet. I will and have recommend Skimz products to a friend.
  • great product By Ol Crusty on 3/26/2015

    I've got this skimmer on my 250 gallon stocked fowlr tank. It was a tight fit in my sump but it did fit. The skimmer is super quite and it skims like a monster. Pretty much set and forget not a lot of tinkering. Pulls 3 times the stuff out compared to the skimmer it replaced.1
  • Great skimmer, terrible pump By Ray on 3/15/2015

    I purchased this skimmer about 3yrs ago and I am on my 3rd pump. The skimmer is awesome despite that. Skims very efficiently, quiet, and compact. If they had better pumps they would compete with the German brands.
  • Worth the Price By Tharon on 1/23/2015

    I purchased this protein skimmer after watching the BRS Tv demo/review. I purchased around Christmas time on deal-of-the-day, so the price was excellent. I have had several protein skimmers in the past. This one is the icing on the cake. Super powerful, easily fine tuned, and extremely effective! I used to think protein skimmers were not worth it because they were expensive and I could never get them to work properly- constantly fine tuning. Not this one, the Monzter is incredible and very easy to use- takes care of my 300 gallon system easily.
  • Its a monzter By Andrew on 1/16/2015

    very nice skimmer.Easy to assemble and very quite. I have to turn my pump way down so its nice that it is so adjustable
  • UPGRADE SUCCESS! By Randy Russell on 1/6/2015

    I still can't get over the footprint of this skimmer and the punch it packs! It fits in a smaller space than my last skimmer, but adds over 300 gallons of skimmer rating!! I upgraded from a ReefOcto 150 w/BubbleBlaster, which had the LOUDEST electrical hum. This skimmer is virtually silent! During the break-in period I had the power cranked up. Since then I have found that half power creates much more foam for me. The adjustability really gives you the advantage of being able to create the perfect air/power mixture to get MAX skimming. Lastly, BRS has the ability to solve warranty issues in-house. I've dealt with my other skimmer's manufacturer and it was quite the headache to get a replacement impeller. With BRS's customer service history, I highly doubt this same headache would exist for SKIMZ.
  • quiet strength By dru on 1/1/2015

    one week into the new skimmer and it is absolutely quiet with amazing air flow. Build quality is excellent and the pump is powerful. The pump is a variable speed DC motor, and there is an air valve and an outflow gate valve for adjustments on three levels. The instructions are serious when they recommend sump level of between 7 and 9.5 inches as the gate is fully open at 9,5 inches and fully closed at 7 inches. Adjustments at these points are with the air valve. I still haven't figured out the contribution of the variable speed motor in all this. The skimmer started pulling material almost immediately, and although wetter than I like at this point, the future looks bright
  • Great Skimmer By David on 12/24/2014

    Nicely built skimmer, feels like it will outlast all my other equipment. Very adjustable, 3 ways to adjust makes it a little confusing at first but not hard to figure out, after some time.
  • Great Product!!!!! By Stephen Jackson on 8/1/2014

    I purchases this skimmer the 4th day that it was available, so I have had about 1 month of use out of this skimmer. The price is great for the skimmer. The footprint size of this skimmer and ease of assembly and dis-assembly to clean this skimmer is amazing. The skimmer itself is super quite even when running at full power, which is a big plus considering how large the pump is. The dual adjustability of the skimmer for tuning is great. While most skimmers have just the outtake restriction this skimmer allows you to tune the amount of air the pump intakes to allow perfect for perfect tuning. The only knock against the quality of the skimmer would be the unique outtake of the water, it is a bit flimsy and is not held on as solidly as the other components of the skimmer which is good quality acrylic. Overall this skimmer in this price range is amazing and as a bonus it is super quit!!!

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