Tunze DOC Skimmer 9004


The DOC Skimmer 9004 is designed for aquariums with a capacity of up to 250 liters, operating on the TUNZE flash skimming principle. It effectively draws water from the surface and removes any film residue, providing an effective stand-alone solution.

Out of stock


The Comline DOC Skimmer 9004 has been designed for use in seawater up to 250 liters, and works using the Tunze flash skimming principle. Thanks to efficient surface suction, which removes surface film, it can be used as an independent device in an aquarium. The skimmer comes complete with a magnet holder for glass thicknesses up to 12 mm, making it ready for installation straight out of the box.

The integrated TUNZE Foamer creates an abundance of fine air bubbles (diameters between 0.1 and 0.3 mm) with minimal noise output. The TUNZE Foamer combines organic-rich surface water with small air bubbles. This allows pollutants including protein, cellulose, and dead cells to be adsorbed onto the air bubbles. The mixture is further expanded and stabilized in the skimmer cup reactor before returning to the aquarium, with the protein-rich air bubbles then overflowing into the skimmer cup. The patented anti-overfoaming system intermediate chamber helps regulate the skimmer’s performance according to the amount of water and organic content present.


  • Power: 5 Watts
  • Air Capacity: 200 L/H
  • Aquarium Capacity: 300L
  • Voltage: 100 – 240 V
  • Cable Length: 3 m

Additional information

Weight2 kg