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Home » Saltwater Aquarium Supplies  » Protein Skimmers  » Hang On Skimmers  » Venturi Needle Wheel  »  Tunze Comline DOC Protein Skimmer 9004
Tunze Comline DOC Protein Skimmer 9004

Tunze Comline DOC Protein Skimmer 9004

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Tunze Comline DOC Protein Skimmer 9004 Information

The new Tunze Comline® filters opens the way for compact aquarium components designed for internal operation, are ultra-functional and are highly-sophisticated. The system creates a natural atmosphere in the aquarium at a minimum size. The goal always remains the same, more performance and less space.

The Comline® DOC Skimmer 9004 is designed for use in seawater mixed aquariums / soft coral aquariums up to 250 litres (66 USgal.) or sensitive reef biotopes with stone corals up to 150 litres (40 USgal.). It works based on the TUNZE® Flash Skimming principle, water supply is provided via an efficient surface intake system with bacteria film removal. Thus, the system can also be used as a “standalone solution” in the aquarium. The featured TUNZE® Foamer generates many fine air bubbles with a diameter between 0.1 and 0.3mm, which ensures particularly silent operation.

The “Flash skimming” principle enables highly efficient foam production.
Principle: Protein-rich surface water is mixed with water thoroughly in the TUNZE® Foamer. On the surface of the air bubbles forming, pollutants such as protein, cellulose, dead cells, etc. are adsorbed immediately, the air bubbles are very fine, with a diameter between 0.1 and 0.3mm. The water/air mixture is expanded and stabilized in the skimmer cup, the water returns to the aquarium, and the protein-loaded air bubbles reach the skimmer cup reactor. The patented anti-overfoaming system intermediate chamber with phase water prevents the skimmer from overfoaming and controls the skimmer performance, depending on the water level and organic load.
The particularly high efficiency of the “flash skimming” principle compared to large skimmers with long contact time is obtained because the substances adsorbed by the air bubbles are not released again, thus they don`t return to the aquarium water again.

Includes magnet mounts for aquariums up to 3/8" thick.

  • Dimensions: 4.3" x 3.5" x 12"
  • Water Lever Required: Approx. 8.86" - 9.65"
  • Air Output: Approx. 150 L/H
  • Energy Consumption: 4W
  • Tank Size: 15-65 gallons
  • Surface intake with bacteria film removal.
  • Skimmer cup, 0.2l (.05 USgal.) volume, also accommodates the foam reactor, easy to remove.
  • Attachment with a patented magnet holder for a glass thickness of up to 3/8".
  • Intermediate chamber with patented anti-overfoaming system.
  • TUNZE® Foamer 9004.040, high air output and low energy consumption (4W).
  • Bubble-free outgoing water.
  • New “Comline® Design”: comfortable use, elegant and unobtrusive in the aquarium.
  • Air flow regulation and silencer for an exceptionally quiet operation.
  • Made in Germany, 2-year manufacturer`s warranty

Manufacturer Info

For forty-five years the name TUNZE® has been synonymous with aquariums. Many products and components which we have developed in the course of time are now standard features of aquarium technology today. This confidence in TUNZE is no coincidence. The company has remained true to its philosophy right from the beginning, researching water biotopes all over the world to develop components which enable natural water conditions in the closed environment of an aquarium. In the implementation of know-how, effectiveness and efficiency, TUNZE® takes the lead in environmental compatibility. Their motto is: quality and reliability. These values are upheld with well thought-out and precise tool making by highly qualified experts. The brand names of TUNZE® and Turbelle® meet the expectations of the seal of quality; Made in Germany. Many of the products shown in this catalogue are protected by national and international patents.
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Tunze Comline DOC Protein Skimmer 9004 Reviews

Average Rating
(13 reviews)
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of 2

Great Skimmer

Reviewers Rating Excellent!

Posted: 9/20/2014 from TORONTO, CANADA
4.5 5
Experience Level: Intermediate

Comments: First skimmer I've ever used. Very impressed with Marine Depot. I'm in Canada and it was here in a week. The skimmer: Only weakness was the nubs that connect the magnet. One broke the first time I connected it. As a result, just drilled a couple of screws and fixed it. Skimmer is great, works well and very quiet.

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Reviewers Rating Great

Posted: 6/8/2014 from WARREN, MI UNITED STATES
3.5 5
Experience Level: Intermediate

Comments: very well made the magnets could be stronger and the plastic tabs that hold the magnets to the unit are weak. other than that the unit is very quiet and produced very good skimate in 24hours of use.

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Quiet and powerful

Reviewers Rating Great

Posted: 5/7/2014 from Burto's Reef
4.0 5
Experience Level: Intermediate

Comments: This is my 5th. Nano, or HOT skimmer. It obviously is not HOT. Rather, it sits unobtrusively inside your nano tank in a corner, or along the back wall. Low, low noise level and low, low energy consumption. Big, big performance. The surface skimmer is a fantastic feature for nanos, since most don't have an overflow (except the all in ones). Created froth right away and actual skimate within just a few days. Won't produce a real dry skimate, that's why it didn't get 5 stars.

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tunze 9004 skimmer

Reviewers Rating Excellent!

Posted: 3/29/2014 from SAINT PETERS, MO UNITED STATES
4.5 5
Experience Level: Intermediate

Comments: great skimmer. put it in my nuvo 38 and it fits perfect. foam right away and no micro bubbles!

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Tunze Awesomeness

Reviewers Rating Excellent!

Posted: 9/16/2013 from MILWAUKEE, WI UNITED STATES
5.0 5
Experience Level: Intermediate

Comments: I have been running this skimmer for about 5 weeks, it's located in the Aqueon 1 sump, in the center chamber with a Tunze Silence Pump in the center chamber as well. I have not experienced micro bubbles. The intake of the skimmer is faced toward where the water enters the sump. It took a while to adjust the speed of the pump, along with the water level & height of the skimmer. The Auto Top Off helps to maintain a stable water level. Ironically, the ATO is also the Tunze Osmosolator. I do prefer Tunze equipment but have tried many inferior products over the last 20 years. Now, I just spend the money to do it right the first time & save the frustration. The reason I chose the center chamber for the Skimmer was the water height was optimal & the flow rate was a bit faster. The last chamber is where my refugium is located. It is the largest section & slowest water movement since the return pump is in the center chamber.

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Great little skimmer!

Reviewers Rating Excellent!

Posted: 8/29/2013 from OLATHE, KS
5.0 5
Experience Level: Beginner

Comments: Just added this to my Innovative Marine Nuvo 38 tank. Previously had the Innovative Marine SkimMate. This is so much nicer. Very easy to install, much quieter than the IM skimmer, and I have not had the microbubble issue that I did with other skimmer. Construction is solid, doesn't feel like I am going to break it. Skimming cup seems smaller than the IM cup, but not a big deal. So far it is skimming great, getting all sorts of stinky stuff out of there!

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let it skim!

Reviewers Rating Excellent!

Posted: 8/22/2013 from CHICAGO, IL UNITED STATES
5.0 5
Experience Level: Intermediate

Comments: the build quality of this skimmer is durable. The installation is easy as well. I has this for about a week and as soon as the break in was done it skimmed like no other. please do not freak out about the micro bubbles seeping into your tank this will go away. i have very happy about this purchase. The closest thing to this skimmer is a hydor nano. I deff recommend this to anyone who is new to tunze line of products. BY FAR THE MOST DURABLE SKIMMER I EVERY OWNED.

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Cheap Magnet Holders

Reviewers Rating Average

Posted: 8/11/2013
3.0 5
Experience Level: Intermediate

Comments: Skimmer works great. There are microbubbles. I don't understand how you can charge $150+ for a product and not spend another 50 cents to have a better connection for the mounting magnets. If you bump it, the magnets fall off. Then you need to get your arms wet and waist time fixing it.

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Great so far

Reviewers Rating Excellent!

Posted: 4/1/2013
5.0 5
Experience Level: Intermediate

Comments: Just received this skimmer and fits perfectly in my Nuvo 38. It is VERY quiet and has already produced a good foam head. I guess i'll see how it runs in the long run, but for now its already A+!

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Overpriced,flimsy & weak

Reviewers Rating Unsatisfactory

Posted: 3/8/2013
1.0 5
Experience Level: Intermediate

Comments: After 4 weeks, the cup continuous to fill with water, no skimming despite adjustments. Tech support has very little idea of what they're talking about (continuously ask the same questions even when I send them pictures of the interior of the skimmer and answer them with precisely what they ask). Produces microbubbles with or without the filter pad at the bottom, bubbles also escape via the sides as well. Plastic connections that hold the magnets are extremely fragile, once it's mounted...don't attempt to move it, yourun the risk of breaking the cheap plastic. One of the worst skimmer's I've dealt with. The Hydor Slim Skim nano is a much easier setup and Hydor's tech support is more helpful. Last tunze product I will ever own.

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