Pawfly Mini Aquarium Sponge Filter, Fish Tank Internal Filter with Foam and Air Stone Submersible Bio Sponge Filter for Fish Tanks up to 5-20 Gallon (

Pawfly Mini Aquarium Sponge Filter, Fish Tank Internal Filter with Foam and Air Stone Submersible Bio Sponge Filter for Fish Tanks up to 5-20 Gallon (

Mechanical Filtration: The mini 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 5-20 Gallon Tanks: Size: 3.2" W x 2.2" H. Fit for 5 to 20 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: < 4 W; jetting volume of air stone: 0.8 L/min. The bio sponge 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! Mini Aquarium Sponge Filter, Small Fish Tank Internal Filter with Foam and Air Stone Submersible Bio Sponge Filter for Fish Tanks up to 5 Gallon (Air Pump Not Included)