Pawfly Large Aquarium Sponge Filter, Internal Fish Tank Filter with Foam and Filter Balls Detachable Submersible Filter for 20-40 Gallon Fish Tanks (Air Pump Not Included)
Mechanical Filtration: The large aquarium sponge filter can effectively trap debris, food residues, wastes or other impurities in water. Prevent them from entering the aquarium to keep water clean.
Deep Cleaning: Contain mini filter balls on the bottom. They are helpful for blocking large particles in the water and accumulating beneficial elements. Provide biological filtration to fully remove excess harmful substances.
For 20-40 Gallon Tanks: Size: 4.12" W x 2.2" H. Fit for 20 to 40 gallon fish tanks. Suitable for the breeding and feeding of various ornamental fish, shrimp or fish fry.
Quiet Aeration: Air powered aquarium filter – required air pump: < 5 W; jetting volume of air stone: 1.3 L/min. The fish internal filter produce a cascade of dense bubbles in the water, greatly promoting oxygen circulation to keep your fish healthy.
Easy to Clean: The submersible filter can be easily detached for cleaning. Rinse the sponge every 2 to 4 weeks with aquarium water ONLY. Avoid soaking or washing it in tap water! Replace the white sponge every 2-3 months!
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