Aquarium pump manufacturers Tunze have released a new Nanostream pump, this time with a manual flow control.
"The Turbelle Nanostream 6045 has been developed further," say Tunze, "now permitting the output to be controlled between 1,500 and 4,500 l/h (396 and 1,188.7 USgal/h)."
"This means that the pump can be used in smaller tanks from 40 litres (10.5 USgal.), and adapts well to the flow requirements of different organisms."
Energy consumption is 5-7 watts, for an RRP of £66.70.