AquaMiracle True 4-Stage Fish Tank Filter, In-tank Submersible Aquarium Filter Internal Fish Filter with Aeration, for 10-40 Gallon Aquariums

PERFORMANCE - This aquarium filter offers a powerful 130GPH flow rate, 2.5ft maximum head height, and 3.5W power, suitable for 10-40 Gallon tanks.

SATETY MOTOR - This internal aquarium filter has an fully epoxy-sealed motor, tested with super high voltage during manufacturing to avoid electricity leakage.

TRUE 4-STAGE FILTRATION - Featuring 3 sponge blocks and bio-balls for true 4-stage filtration, including COARSE SPONGE to capture large impurities, FINE SPONGE to catch small particles, Bio-balls for cultivation of beneficial bac-te-ria for the environment in the aquarium, and CARBONIZED SPONGE to absorb odors and chlorine.

AERATION - The fish tank filter comes with accessories to increase oxygen supply. It's important to note that for optimal aeration, this fish filter should not be positioned too deep in the water and the air regulator should be positioned higher than the water level.

TIPS - For tanks over 40 gallons, use 2 filters placed at the back corners for complete filtration and improved water circulation.