DOC Skimmer TUNZE 9430.005

TUNZE DOC Skimmer 9430: high-performance protein skimmer for large marine aquariums

The TUNZE DOC Skimmer 9430 is a skimmer designed to efficiently remove organic substances present in large-volume marine aquariums. Its operation combines strong air intake capacity, a compact design, and a magnetic-bearing pump developed to reduce noise.

Depending on the organic load and the aquarium population, this TUNZE skimmer can be used in reef systems ranging from 700 to 3,500 liters. It is particularly suitable for heavily stocked fish aquariums, mixed reef aquariums, and systems dedicated to SPS corals.

A skimmer suited to different reef populations

The recommended capacity of the DOC Skimmer 9430 depends directly on the aquarium’s organic load level. An aquarium containing a large population of SPS corals requires a higher skimming capacity than an aquarium mainly populated with fish or less demanding corals.

High air intake capacity

The TUNZE DOC Skimmer 9430 has an air intake capacity of up to 2,000 L/h. This air output promotes the formation of a dense foam intended to capture organic compounds before they break down in the aquarium water.

The collection cup has a volume of 2 liters. It collects the waste removed by skimming and should be cleaned regularly to maintain the unit’s performance.

Quiet magnetic-bearing pump

The integrated pump uses a magnetic-bearing system designed to ensure particularly quiet operation. This technology reduces mechanical vibrations and makes the DOC Skimmer 9430 suitable for installation in a technical cabinet near a living area.

The skimmer operates with a power supply of 100 to 240 V and a frequency of 50 to 60 Hz. Its maximum power consumption is 48 W.

Installation in a sump aquarium

The TUNZE DOC Skimmer 9430 is intended for internal installation in a sump aquarium. It requires an available footprint of 36 × 36 cm and has a total height of 50 cm.

The permitted immersion depth is between 10 and 24 cm. For optimal operation, the manufacturer recommends a water level of about 15 cm around the skimmer.

Technical specifications of the TUNZE DOC Skimmer 9430

Startup and skimming adjustment

Before startup, the DOC Skimmer 9430 must be positioned vertically on a stable surface. The immersion level must be within the recommended range and remain constant during operation.

During first use, forming stable foam may take some time. Manufacturing residues, water treatment products, supplements, or certain foods can temporarily affect the skimmer’s behavior.

Adjustment should be made gradually. Foam that is more internal generally produces a more concentrated skimmate, while foam that is more external increases the amount of liquid collected in the cup.

Maintenance of the DOC Skimmer 9430

The cup and skimmer neck should be cleaned regularly to prevent buildup. A dirty neck reduces foam rise and can decrease overall skimming efficiency.

The pump, air intakes, and water-contact components should also be checked periodically. Limescale, algae, and particles can reduce water and air flow rates. Before any intervention, the unit must be unplugged from its power supply.

Why choose the TUNZE DOC Skimmer 9430?

The TUNZE DOC Skimmer 9430 combines high skimming capacity, strong air flow, and quiet operation in a format suitable for technical cabinets. Its wide operating range makes it suitable for both large mixed reef aquariums and systems heavily stocked with fish or SPS corals.

With its 2,000 L/h air intake, 2-liter cup, and compatibility with marine aquariums up to 3,500 liters depending on their population, this skimmer is a suitable solution for reef systems requiring regular export of organic waste.