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Deltec 6000i Internal Protein Skimmer

Deltec have been a market leader in specialist marine equipment for over 25 years.

These new internal protein skimmers continue their long history of German hand built, high efficiency protein skimmers. They have used their experience to introduce many innovations in skimmer technology over the years, pushing the boundaries of performance and efficiency.

This new range of sump mounted protein skimmers offer a neat compact design containing numerous features, including toolless disassembly, making them easy to use and maintain.

The internal design reduces turbulance giving optimum conditions for the bubbles to fully saturate with organics. Combined with the classic cylinder body and wide neck the Deltec internal skimmers maximize performance.



• Aquarium size 3000 to 6000 liters
• Dimensions (LxWxH) 36 x 32 x 66 cm 
• 2 x Deltec DCC 5 24V DC pump
• 2 x 10 stage pump controller
• 300mm body diameter
• 180mm neck diameter 
• Power consumption 23 - 43 watts x 2
• Maximum 3800 lph air intake
• For sumps with 18 to 26cm water depth 

Product Features

• Highly efficient cylinder shape
• Extremely low power consumption
• Whisper quiet operation
• Micro water level adjuster
• Skimmer Cup Drain
• Toolless maintenance
• Quick and easy pump removal
• Pump feed / pause button
• Automatic cup cleaning system available.
• Hand built in Germany


The Deltec 6000i protein skimmer is operated with two of the 24V Deltec DCC 5 pumps that can be electronically adjusted with the included ten stage controllers. This allows the water flow and air input to be optimised to the specific requirements of the aquarium.

The pump can be slowed to allow a longer dwell time inside the unit for lightly stocked aquariums or increased to suit well stocked aquariums.

The DCC 5 pumps can generate 1900 liters per hour of air each using only 43w of power. 

Ergonomic cylinder shape

Thanks to the ergonomic cylinder body shape, the Deltec 6000i protein skimmer ensures the best skimming results. 

The shape of the skimmer does not taper or narrow towards the top. This results in the small air bubbles being able to rise unhindered, allowing them to become fully saturated with organics, only bursting in the riser tube inside the collection cup.

This body design also allows for the footprint of the protein skimmer to be as compact as possible allowing it to be neatly installed in most sumps.

Internal body design

The body design includes two internal diffusers to ensure minimum turbulance in the body. The first is on the outlet of the pump to disperse direct water flow from the pump and the second difusser plate dampens strong water movement, as the air/water mix is released in to the body. This allows the fine bubbles to rise slowly undisturbed in the main reaction chamber maximising the contact with organics without restricting the power of the pumps.

The DCC5 DC pumps are suspended from the seporator plate in the body to reduce the chance of vibration transmission and therefore reduce noice.

Toolless maintenance

Due to waste accumulation and calcium carbonate build up protein skimmers need to be cleaned periodically to maintain peak performance. 

Deltec have incorporated a quick toolless system for dismantling the skimmer and removing the pump. In tests Deltec have been able to remove a pump for cleaning in less than 20 seconds.

The skimmer body can be fully dismantled easily and quickly to allow for easy maintenance, less time spent maintaining equipment and more time to enjoy your aquarium.