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Everything about aquarium external filters in the Aquaristikshop
An external filter is the centrepiece of an efficient aquarium filtration system and ensures crystal-clear water, healthy fish and stable water values. In contrast to the internal filter, the external filter is installed outside the aquarium - usually in the base cabinet - and therefore offers more space for powerful filter technology and large filter media.
What is an external filter?
An aquarium external filter draws the water out of the tank via a suction hose, cleans it in several filter stages and then returns it to the aquarium clean and oxygen-rich. The combination of mechanical, biological and chemical filtration reliably removes dirt particles, pollutants and excess nutrients. The result: clear, clean and healthy water - the perfect basis for a stable ecosystem in the aquarium.
Advantages of an external filter
- Particularly high filter performance - ideal for medium to large aquariums
- Large filter volume for effective pollutant removal
- Easy maintenance as the filter is located outside the pool
- Quiet operation and long service life
- Space-saving inside the aquarium - more room for decoration and plants
Whether you are looking for an external filter for a community tank, an aquascape or a large breeding tank - in Zoo Roco's aquarium shop you will find a large selection of high-quality external aquarium filters from leading brands for every tank size and every requirement.
Zoo Roco - Your specialised shop for aquaristics
At Zoo Roco, your Swiss specialist aquarium shop, you will find everything you need for external aquarium filters - from compact models for smaller tanks to powerful professional filter systems. You can rely on our experience, high-quality branded products and expert advice for a healthy, clear and balanced aquarium.