BNYD Aquarium Cleaner Fish Tank Filter Gravel Sand Siphon Pump (White) Easy to use cleaner pump for aquarium Remove the dirt from the bottom of your aquarium Easy to install and use. Made with portable, lightweight and heavy duty material. Does not hurt any aquarium fish when using. Glass suction cup allows you to easily drain tanks with one hand. Manually operated liquid transfer pump. Can be easily emptied out into any container.