The Dennerle Nano External Skim Filter with its large filter volume & several inlet & outlet options is ideal for nano aquariums of 30 to 112 litres. The filter can either be attached to the side pane of the aquarium or placed next to it. The filter guarantees a clean water surface & optimal filter performance. The Dennerle Nano External Skim Filter is of high-quality manufacturing & extremely quiet. It takes up very little room in the aquarium allowing more space to roam for your fish & invertebrates. The lack of superfluous technical equipment also adds to your aquarium´s visual attractiveness. Features at a glance Different positioning options May be attached to the filter or st&-alone 2 inlet options Surface skimmer or suction pipe with pre-filter 3 outlet options Jet nozzle adjustable outlet & a lily pipe Filter material included Sponge fine filter material & high performance filter material included Noise-level & size Quiet as a whisper & compact Filter performance Adjustable flow rate for aquariums of 30 to 112 litres volume. Flow rate can be regulated at the outlet. Skimming For a clean water surface more oxygen in the aquarium & fine filter performance. The floating inlet automatically adjusts to the water level. Buoyancy is continuously adjustable for fine-tuning. Proportion of surface skimming to deep inlet also continuously adjustable. Water circulation With jet nozzle (a) for flat water flow. With ball & socket joint outlet (b) for targeted flow. With rotatable lily pipe (c) for soft flow. Manufacturing High-quality materials for secure & long-term use