Comline DOC Skimmer 9012 DC - Tunze

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Comline DOC Skimmer 9012 DC - Tunze

100% Recommend this to a friend (2 of 2)

SKU: 210060
In Stock: 13
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Quick Overview

Why does BRS recommend this?

We have really liked the Tunze Comline skimmers due to their small form factor and their ability to adapt to many different systems. With AC pump and DC pump models available you can choose the skimmer that works best for your system.

Includes DC powered pump and controller for complete control.

Using the Tunze Flash Skimming Principle, the Comline DOC Skimmer pulls water through an efficient surface suction.

Heavy Bioload - 50 gallons

Medium Bioload - 150 gallons

Light Bioload - 260 gallons

  • Skimmer Cup volume: .7 Liters

  • Air capacity: 400 L/H (52 GPH)

  • Magnet holder for up to 1/2" thick glass

  • Quiet Operation

  • Bubble free outgoing water

  • Easy to remove collection cup

  • Immersion depth: approx. 255mm to 285mm (10 to 11 in.)

  • Power consumption: 13W, 230V/50Hz (115V/60Hz)

  • Dimensions: L140 x W110 x H415mm (L5.5 x W4.3 x H16.3 in.)


Full Details

Owners Manual


The 9012 DC Skimmer now includes a DC powered pump and controller for ultimate control and tuning ability.


The Tunze Comline DOC skimmer utilizes Tunze's "Flash Skimming" principle. The skimmer is quiet and generates a very large volume of small bubbles for efficient skimmer operation. It operates stand-alone without needing any additional equipment (feed pumps, etc) and mounts to the tank via a convenient magnet holder strong enough for glass up to 1/2" thick.


The TUNZE® Foamer generates large volumes of fine air bubbles with a diameter between .0039 to .011 in. (0.1 to 0.3 mm) On the surface of the air bubbles, pollutants such as protein, cellulose, dead cells, etc. are adsorbed immediately. The water/air mixture expands and stabilizes in the skimmer cup reactor, the water returns to the aquarium, and the protein-loaded air bubbles spill over into the skimmer cup. The patented anti-overfoaming system intermediate chamber prevents the skimmer from over foaming and controls the skimmer performance, depending on the water level and organic load. This “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.


2 Items

  • Awesome By Eric on 11/15/2016

    Got this to replace the large IM skimmer in my SR-80 a few weeks ago. It immediately started skimming and was super quiet. Highly recommend for the larger SR Innovative Marine tanks.
  • Excellent Compact Skimmer By Arman on 7/11/2016

    I am using this skimmer on a 100 g All - In - One Style Tank, the fact that it only takes up 5" x 6" is fantastic. I recommend paying the extra money and getting the DC model. The DC Model essentially lets you control the pump, which makes controlling the skimmer extremely simple. This skimmer is truly plug in play. It is doing a fantastic job and I could not be more happier.


Ask a question

Product Questions

which one of these skimmers from TUNZE may fit a IM Lagoon 50?
Question by: Byron G. on Nov 18, 2016 8:45:00 AM
Hey there, thanks for reaching out to us! It doesn't look like these Tunze Comline skimmers will fit the Lagoon50. Their dimensions are larger than the Auqa Gadget SkimMate MidSize Ghost Skimmer -, which is the recommended skimmer for that tank. :-)
Answer by: Randy (Admin) on Nov 18, 2016 8:49:00 AM
Hi- can this skimmer go in a sump?
Question by: Melissa Merwin on Jun 4, 2017 4:33:00 PM
Hi Melissa, The Tunze 9012 Skimmers can be placed in a sump. You will need to mount it close to the glass/acrylic in the sump so that the magnet can hold the skimmer at the proper water level.
Answer by: Charlie (Admin) on Jun 5, 2017 11:05:00 AM