Tunze 9004.001 skimmer

Comline DOC Skimmer DC 9004.1 - TUNZE

Recommended based on tank load for marine aquariums from 60 to 300 liters.

- Immersion depth: approximately 225 to 245 mm.

- Skimmer capacity: 0.2 liters
- Air capacity: approximately 200 l/h.
- Power consumption: approximately 5 W (max. 10 W)
- Power adapter: 100-240V / 50-60Hz
- Cable length: 3 m for the Turbelle® controller
- Dimensions (L x W x H): 110 x 90 x 305 mm
- With magnetic holder for glass up to 12 mm thick.

Technical Characteristics

How to choose the right DOC skimmer for a saltwater aquarium?

Every marine aquarium, due to an individually created biotope, has a different sensitivity to the load of organic compounds. The assumptions regarding tank size are for the average marine soft coral aquarium, so these recommendations may vary depending on the biotope composition. Therefore, for sensitive biotopes, when choosing a skimmer, the recommended volume must be reduced or corrected as necessary.

Low sensitivity, no correction

In aquariums containing soft corals, such as long polyps and anemones, the amount of dissolved organic compounds can be higher and sometimes even essential to life. 
The DOC skimmer for this aquarium volume can be used without needing a patch. 

Medium sensitivity, 40% reduction

 
In mixed tanks containing soft and hard corals (LPS), a medium sensitivity to changing organic conditions is generally observed. Zooplankton, sponges, etc., are also often found here. For these aquariums, a correction of about 40% of the indicated skimmer capacity is calculated. 
A DOC skimmer up to 1000 liters should be used for a tank of about 600 liters maximum. 

High sensitivity, 60% reduction

Aquariums predominantly with SPS stone require a particularly high degree of water purity. They must not be loaded with phosphate or nitrate. High oxygen saturation and clear water are indispensable. The DOC Skimmer is often used in these aquariums as a "standalone" solution. 
A DOC skimmer up to 1000 liters should be used up to a tank of about 400 liters. 

High sensitivity and high load, 70% reduction

Aquariums containing hard corals and many fish require a very high skimmer capacity. A skimmer must provide a high degree of water purity for stone corals with a relatively large number of fish. When used as a "standalone" skimmer, the skimmer must be particularly efficient.
A DOC skimmer up to 1000 liters should be used up to a tank of about 300 liters. 

In plankton breeding tanks, 70% reduction

Hard corals or plankton breeding tanks for feeding require a particularly high degree of water purity. High oxygen saturation and clean water are indispensable. 
A DOC skimmer up to 1200 liters should be used in a tank of about 360 liters.

The TUNZE® Comline®

Compact aquarium components for internal operation, ultra-functional, sophisticated, with clearly defined lines.
The Comline® is a range of multifunctional products: Surface and substrate zone intake, high-flow propeller pump filter, flash protein skimming, the system creates a natural environment in the aquarium with a compact footprint. The goal, more performance with less space. The Comline® components meet these requirements and the visual harmony of the aquarium is maintained. It is no longer necessary to hide the technical equipment in the aquarium; on the contrary, it becomes an integral part of it. The system is very efficient; all organic pollutants are removed directly from the environment, while the path the water must travel is short and direct. The risk of leakage is almost zero. The highly efficient technology allows for a reduction in internal equipment volume, as well as significantly reducing energy consumption.

Comline® DOC Skimmer 9004

The Comline® DOC Skimmer 9004 is designed for saltwater aquariums up to 250 liters. It operates on the principle of TUNZE® instant skimming and draws water from the surface layer when dirt is removed. As a result, it is used in aquariums as a standalone solution. TUNZE® Foamer generates a large number of small air bubbles with a diameter of 0.1 to 0.3 mm and is extremely quiet.

Flash Skimming

The Flash Skimming principle ensures efficient foam production and high machine performance.
Principle: The protein-rich surface water layer is very intensively mixed with air by the TUNZE® Foamer. During the formation of air bubbles, waste such as proteins, cellulose, dead cells, etc. are collected on the surface, resulting in small bubbles with a diameter of 0.1 to 0.3 mm. The mixture of water and air bubbles is relaxed and stabilized in the skimmer, then the water returns to the aquarium and the air bubbles with the proteins move to the foam reactor tank. The patented Anti Overfoaming system—a middle chamber with a water distributor—prevents the skimmer from boiling and regulates foam efficiency based on water level and biological load.

With Flash Skimming, particularly high efficiency can be achieved compared to modular skimmers with long contact time, as in this case, the substances absorbed by the bubbles do not detach but return to the aquarium water.