First announced just in time for InterZoo, the Tunze NanoStream 6040 is a controllable DC propeller pump with the entire pump assembly literally turned on its side. This neat little pump is basically identical to a smaller, more basic model called the NanoStream 6020 which is not controllable, cheaper and pushes about half as much flow … Continue reading Tunze NanoStream 6040 Review: the most features packed inside the smallest controllable pump