Internal Fish Tank Filter, Submersible Power Filter With Adjustable Waterflow, Quiet Aquarium Filtration For 50 Gallon Fish Tank

[3-in-1 filter]: Three functions of filtering aeration and wave making. Meet the needs of aquarium filtration and aeration. [Internal circulation filtration water purification]: Multi-layer filtration water purification circulation to achieve better filtration effect. The shaft core uses a magnet design to greatly reduce the resistance break and wear resistance durable and energy-saving. [Biochemical Sponge Filter Box]: Enlarge the filter box to filter in a large area. The coarse cotton absorbs fish feces and filters impurities. At the same time it is convenient to disassemble and easy to clean. In addition the other filter materials such as ceramic balls or filter stones can be placed in the filter box. [Rapid oxygen increase]: The oxygen increase effect is strong the gas volume is adjustable and it is adjusted by the rotation of the intake valve. Note: The intake valve must be placed outside the fish tank in contact with the air. [Package contains]: 1X fish tank filter. Sweet tips: In order to prevent the filter element from clogging please clean the filter element or replace the filter material regularly. If you have any questions please feel free to contact us we will serve you as soon as possible.