Description: The mini USB water pump can create water currents in the fish tank, avoiding dirt accumulating in one spot, which is conducive to the growth of aquatic organisms, keeping and rearing tanks or small water Features where reliable water conveyance, circulation or flow is required. Fountain pump with USB interface can plug to almost everything with USB interface(such as Power bank, Laptop, USB socket, etc). Features: [High Performance]The submersible powered via USB, make the still water become flowing water, provides a better living environment for the fishes. [USB Version]No longer the traditional plug, but the applicability wider USB interface, can plug to almost everything with USB interface. [Stable Install]Submersible water pump with adapter plate holes on both sides can be installed vertically or horizontally. [Mini Size]Mini water pump keeping and rearing tanks or small water Features where reliable water conveyance, circulation or flow is required. [Widely