The Automatic Fish Stool Collector Vacuum from Tank Life is a three-in-one unit for keeping an aquarium clean. It works as a filter, an oxygenator, and a waste collector at the same time. Fish waste and impurities are drawn into the middle compartment, and clean water is returned to the tank. It runs on the pneumatic principle, so you connect it to an air pump and set it inside the tank. A biological filter ball sits at the bottom of the cylinder to support nitrifying bacteria, which drive the tank's nitrogen cycle. Because waste is contained in one place, it reduces the need for frequent water changes and gravel washing, and helps keep odors and contamination down. Two things to know before you buy. The air pump is not included, so you will need one separately for the unit to work. And when the compartment fills with waste, you empty, disinfect, and rinse it before putting it back. The body is acrylic in gray and measures 16 x 9 x 9 cm. Key features Three-in-one function: filtration, oxygenation, and fish waste collection in one unit Collects fish waste and impurities in a middle compartment, then returns clean water to the tank Runs on the pneumatic principle and connects to an air pump (pump not included) Biological filter ball at the bottom supports nitrifying bacteria for the nitrogen cycle Reduces the need for frequent water changes and gravel washing, and helps prevent odors Acrylic body in gray, 16 x 9 x 9 cm (6.3 x 3.54 x 3.54 inches)
