The Eheim classic Vario+e 250 revolutionises aquarium technology with its advanced electronic control and integrated Wi-Fi function. This innovative external filter, ideal for aquariums from 50 to 250 litres, allows aquarium owners to conveniently control filter performance via a smartphone or tablet and network the external filter with other products from the Eheim digital family. The Eheim classic Vario+e 250 is the only external aquarium filter in the world to feature a state-of-the-art, energy-saving pump with BLDC technology. BLDC- stands for a brushless motor with direct current technology. This means the highest quality, first-class components and carefully coordinated functions. You can adjust the pump performance continuously (different modes).When linked with the devices of the Eheim Digital Family, the function is coordinated accordingly. For example, the pump performance reduces during feeding with the Eheim autofeeder+. Or when coupled with the Eheim LEDcontrol+e, the perf