The Hydro Tube® is a series of tube pumps designed to create laminar flow in aquariums and similar containers. Energy-efficient circulation of water is the basic function of this tube pump. "Dead zones" can thus be avoided. With the help of the controller, flow and wave simulations can be operated, whereby flow velocity, wave height and wave length are adjustable. This is used to simulate river flows, tides and surges. The Hydro Tube® is designed for use in freshwater and saltwater.