Tunze DOC Skimmer 9410 DC

Tunze DOC Skimmer 9410 DC is designed for effective nutrient control in marine aquariums. It removes dissolved organic compounds before they break down into nitrate and phosphate. Intensive mixing of air and water also supports gas exchange and oxygenation.

The skimmer is suitable for fish-only marine aquariums, soft coral systems, LPS reefs, mixed reefs, and appropriately sized SPS aquariums. The practical maximum aquarium size depends on coral sensitivity, fish population, feeding, and additional nutrient export methods.

The nominal maximum recommendation is 1,200 litres. This rating is primarily intended for marine aquariums with relatively low sensitivity to dissolved organic compounds. More sensitive reef systems require a substantial reduction in the recommended aquarium volume.

Effective organic waste removal

Marine aquariums constantly accumulate organic compounds from fish waste, uneaten food, coral mucus, and decomposing material. DOC Skimmer 9410 DC produces fine air bubbles that attract dissolved organic substances.

The bubbles rise through the reaction chamber and transport waste into the collection cup. Removing organic compounds before decomposition helps control the formation of nitrate and phosphate while supporting clear water and more stable reef conditions.

Protein skimming does not replace regular water changes, testing, or general aquarium maintenance. It does, however, form an important part of marine aquarium nutrient management.

Adjustable DC performance

Water flow is electronically adjustable up to approximately 1,200 l/h. Air performance can be adjusted up to approximately 750 l/h.

Adjustable output makes it possible to match the skimmer to the actual biological load. Lower output may be useful during the initial running period, with low fish stocking, or when the skimming is excessively wet. Higher output can be selected as feeding, livestock, and organic load increase.

The Turbelle Controller provides convenient control of pump performance. Final adjustment should be based on foam structure, collected waste, and measured aquarium nutrient levels.

Energy-efficient compact construction

Maximum power consumption is approximately 16 W. The efficient pump is economical for continuous operation.

Without the post-filter, the skimmer measures 250 × 180 × 415 mm. Its relatively compact footprint makes installation possible in many aquarium cabinets and sump systems.

Before purchase, check both the available sump footprint and the service clearance above the skimmer. Additional vertical space is required for removing and cleaning the collection cup.

Collection cup

The collection cup has a capacity of approximately 0.7 litres. It can be removed for convenient emptying and cleaning.

Clean the collection cup neck regularly. Organic deposits gradually restrict foam movement and reduce skimming performance.

The speed at which the cup fills depends on aquarium load and adjustment. Wet skimming produces lighter liquid more rapidly, while dry skimming creates darker and more concentrated waste.

Post-filtration

DOC Skimmer 9410 DC can use a post-filter to capture fine suspended particles after skimming. Post-filtration may also help reduce the number of microbubbles returning to the aquarium system.

Clean the post-filter material regularly. Clogged material can restrict flow and accumulate organic waste.

Aquarium sizing

The nominal aquarium recommendation should be reduced according to reef sensitivity and biological load.

• Soft coral, leather coral, and anemone aquariums: up to approximately 1,200 litres
• LPS and mixed reef aquariums: up to approximately 720 litres
• SPS-dominated reef aquariums: up to approximately 480 litres
• Heavily stocked SPS aquariums: up to approximately 360 litres

These recommendations are approximate. Intensive feeding, a large fish population, or using the skimmer as the primary nutrient export system may require even more conservative sizing.

Key features

• Electronically adjustable protein skimmer
• Designed for marine and reef aquariums
• Nominally suitable for aquariums up to 1,200 litres
• Suitable for soft coral, LPS, SPS, and mixed reefs
• Adjustable water flow up to approximately 1,200 l/h
• Adjustable air performance up to approximately 750 l/h
• Turbelle Controller
• Maximum power consumption of approximately 16 W
• Effective removal of dissolved organic compounds
• Helps control nitrate and phosphate formation
• Supports gas exchange and oxygenation
• Compact footprint
• Designed for sump installation
• Collection cup capacity of approximately 0.7 litres
• Suitable for continuous operation
• Product number 9410.001

Technical information

• Recommended maximum aquarium size: 1,200 l
• Water flow: adjustable up to approximately 1,200 l/h
• Air performance: adjustable up to approximately 750 l/h
• Power consumption: up to approximately 16 W
• Power supply: 100–240 V, 50–60 Hz
• Recommended immersion depth: 140–240 mm
• Dimensions without post-filter: 250 × 180 × 415 mm
• Collection cup volume: 0.7 l
• Cable length to Turbelle Controller: 3 m
• Product number: 9410.001

Installation and setup

1. Provide at least 250 × 180 mm of free sump floor space.
2. Leave sufficient clearance above the skimmer for removing the collection cup.
3. Install the skimmer in a chamber with a stable water level.
4. Set the immersion depth between 140 and 240 mm.
5. Make sure the skimmer stands level and securely.
6. Install the post-filter and other components according to the instructions.
7. Position the power supply and controller in a dry location.
8. Create a drip loop in the power cable.
9. Begin operation at moderate output.
10. Increase pump performance gradually while monitoring foam production.
11. Check the collection cup frequently during the first days.
12. Adjust the skimmer according to the consistency of the collected waste.
13. Clean the collection cup and foam riser regularly.
14. Maintain the pump and impeller chamber according to the instructions.
15. Disconnect the equipment before maintenance or placing hands in the sump.