Aquarium external filter with electronic microprocessor control aquarium size 180 l 350 l power consumption 10 w 35 w canister volume 7 4 l filter volume 4 5 l 0 5 l prefilter integrated self priming feature stepped increase or decrease of the water flow electronically controlled flow variation cleaning interval indicator electronic system monitoring type of aquarium freshwater minimum aquarium size 180 litres maximum aquarium size 350 litres pump perfor