UPETTOOLS Mini Aquarium Sponge Filter, Small Fish Tank Filter Submersible Fish Filter Built-in Air Bubble Stone and Bio Balls for Fish Tanks up to 5 Gallon (Air Pump Not Included)

Price: $15.88
(as of Apr 10, 2026 23:47:16 UTC – Details)

【Biological Filtration】This small fish tank filter can help your fish tank provide oxygen, biological filtration, water purification, quiet and efficient filtration without disturbing your fish!
【Mini Filter】The aquarium sponge filter consists of filter sponge and filter stones as well as removable bubble stones. 2.13″ W x 2.4″ H. Fit for fish tanks up to 5 gallons. Suitable for the breeding and feeding of various ornamental fish, shrimp or fish fry.
【Compact Design】Round compact design, small size, saving space in the fish tank, compatible with air pump wattage >1W. (Air pump and air tube are not included in the package). Please prepare an air pump suitable for this filter according to your fish tank size.
【Safe and Sturdy】The shell of UPETTOOLS aquarium bio sponge filter is made of high-strength ABS material, which is sturdy and durable, environmentally friendly, non-toxic and harmless, and has a longer service life.
【Easy to Clean】The bio sponge filter can be easily detached for cleaning. Rinse the sponge every 2 to 4 weeks with aquarium water. Replace the white sponge every 2-3 months!