Fluval Clip-on-Filter

Fluval Clip-on-Filter

  • Back-pack filter with many extras
  • 5-stages filtering
  • All media already included
  • With maintenance indicator
  • Leveler for secure hold
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The Fluval C-Series Clip-On Filters are innovative backpack aquarium filters that keep fresh and marine aquarium water crystal clear with help of the unique 5-step cleaning system. Available are three different sizes suitable for freshwater and saltwater aquariums from approx. 35 to 265 litres.

In the first stage, coarse dirt is trapped in porous foam. Further mechanical cleaning takes place in the second stage with a dense polyester layer, where fine impurities are retained. Chemical cleansing takes place in the third stage, where activated carbon filters out unwanted odours, discolouration and chemical substances such as chlorine. Subsequently, the aquarium water is cleaned biologically in stages 4 and 5. For this purpose, a bio-screen first provides a large surface for useful bacteria to settle and at the same time prevents remaining dirt particles from entering the further biological level. In the latter, the biological trickle chamber, C-bio nodes ensure that the water is enriched with oxygen, which is conducive to a rapid reduction of toxic ammonia and nitrite.

Clip-on Filter

5-step cleaning detailed view

For a secure hold on the aquarium rim, the filter has a leveler. After the filter has been hung over the edge of the aquarium, the leveler is turned until the filter sits firmly and completely vertically. In order to be able to vary the flow rate, the filter has a pin on the top which can be moved continuously. Maintenance of the Clip-On backpack filter is also very easy. An indicator rod shows when the foam insert needs cleaning. The filter can be opened from the top to remove the media individually.

Manual Fluval Clip On Filter - - download PDF


  • Designed for aquariums up to 265 l
  • Two Mechanical stages trap large and fine debris
  • Foams easily slide out for quick cleaning
  • Chemical stage with activated carbon effectively removes toxins
  • Biological stage with Bio-Screen pad blocks debris and provides massive surface area for beneficial bacteria growth
  • Biological Trickle Chamber for fast and efficient nitrification when loaded with Fluval C-Nodes
  • Patented refiltration control system permits slower water output and increase contact time with media
  • Independent filtration stage management possible at different times while maintaining continuous biological activity
  • Cleaning indicator notifies when polyfoam needs rinsing
  • For use in freshwater and saltwater aquariums

Scope of delivery

Filter Media

  • Poly/Foam
  • Activated Carbon
  • C-Nodes
  • Bio-Screen Pad


For best results, you should replace the poly/foam insert every 4 - 6 weeks. The activated carbon insert should be changed every 2 - 4 weeks. The bio-filter screen should be renewed every 2 - 3 months. The C-Bioknots should be renewed halfway every 6 months.

Technical Data

Fluval Clip-On Filter - C2
Max. flow rate 400 Litres per hour
Power consumption 5 W
Fluval Clip-On Filter - C3
Max. flow rate 480 Litres per hour
Power consumption 5 W
Fluval Clip-On Filter - C4
Max. flow rate 900 Litres per hour
Power consumption 5 W


Fluval Clip-On Filter - C2
Length 117 mm
Width 127 mm
Height 152 mm
Suitable for aquariums 115 Litres
Immersion depth 265 mm
Fluval Clip-On Filter - C3
Length 117 mm
Width 127 mm
Height 177 mm
Suitable for aquariums 190 Litres
Immersion depth 265 mm
Fluval Clip-On Filter - C4
Length 228 mm
Width 165 mm
Height 215 mm
Suitable for aquariums 265 Liters
Immersion depth 265 mm



Since 1975, Fluval has been offering advanced aquarium technology such as filters, lighting solutions and complete aquarium systems with a high degree of quality and innovation. Fluval's pioneering spirit is reflected in constantly modern products that meet the changing times and fast pace in the field of aquaristics with functionality and robustness. Fluval is not only committed to the much-loved hobby of aquaristics, but also to the preservation of the environment through coral conservation projects, species protection programmes and also works in a close context with the aquaristics community.

General information

Item no.
EAN 015561140027
Weight 0,96 kg
Shipping weight 1,20 kg

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