Tunze Turbelle NanoStream Pump 6015 Turbelle nanostream 6015 (6015.000 For aquariums from 40 to 200 litres (11 to 53 USgal.) Flow rate: 1,800 l/h (476 US gal./h) Energy consumption: 3,5W Voltage / frequency: 230V/50Hz (115V/60Hz)