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The skimmers of the Classic DOC skimmer model series operate according to the horizontal rotation principle of the first generations, supplemented with the newly developed air production of the Hydrofoamer. Despite its very small structural shape, this unit has an excellent skimming performance, and is especially suitable for breeding tanks with living plankton. Classic DOC skimmer models can be used in sumps and tolerate water level variation of +/- 20mm (0.78") without readjustment of the air output. Skimmer cup and foam reactor are one unit in all TUNZE Classic DOC skimmers.
Delivery condition: Ready for mounting with holding device for vertical panes and horizontal glass tops up to 19mm (0.74 in). For tanks with a thicker rim, a Tunze Holder Extension M5x55mm, 3000.244 (TZ1531) is needed.
General Information
In 1963, TUNZE developed the first series-produced protein skimmer with its own air production. In this rotating Venturi skimmer, the hard water jet of a pressure pump is used to produce a constant fine mixture of air bubbles, which is passed into an easy-to-clean skimmer cup by means of an effective removal system. An integrated contact pipe is used to remove protein particles from the water. The refill from the aquarium then is drawn in automatically by means of the so-called molecular compensation pressures (diffusions). This TUNZE invention of contact-skimming makes sure that no living plankton is drawn into the pump circulation.
Specifications:
Recommended for aquariums up to 500 liters (132 gal)
Dimensions: 11"L x 6.1"W x 7.7"H
Installation Depth: Approximately 2.3" to 3.5"
Air capacity: 500 l/h (132 gal./h)
Power consumption: 12W
How do you select the right DOC skimmer for your marine aquarium?
These skimmers operate according to the horizontal rotation principle and are driven by the Hydrofoamer. The entire skimmer operates on the basis of the so-called contact skimming method. For this reason, coarser particles in the size of plankton are not drawn in. This method of operation is very gentle so that no living plankton is drawn into the pump circuit. The extremely flat construction makes it the smallest skimmer in its performance class.
Low Sensitivity
In soft coral aquariums with leather corals and anemones, for example, the share in dissolved organic matter may be higher, sometimes it may even be vital. In this type of aquarium, the recommended aquarium volume can be used without deduction.
High Sensitivity
Aquariums with primarily small-polyp stony corals (SPS) require an especially high degree of purity. They should have no load of phosphates or nitrates worth mentioning. The Classic DOC skimmer should NOT be used as a "stand-alone" solution in these aquariums. This type of aquarium should be reduced by about 40 percent in volume for the skimmer volume mentioned.
High Sensitivity for Breeding Tanks with Plankton
Stony coral aquariums or other breeding tanks with plankton food require an especially high degree of purity. Good oxygen saturation and very clear water are the prerequisites. This type of aquarium should be reduced by about 60 percent in volume for the skimmer volume mentioned.
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