About This

• High Efficiency Filter: The aquarium sponge filter consists of filter sponge and filter stones as well as removable bubble stones. This small fish tank filter can help your fish tank provide oxygen, biological filtration, water purification, quiet and efficient filtration without disturbing your fish
• Perfect Design: Round and ultra-thin 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
• Replaceable Filter Media: You can easily remove the filter sponge from the filter for cleaning or replacement, regular replacement of the filter sponge will help keep your fish tank clean and provide a good living environment for your aquarium fish
• Wide Application: Small aquarium internal filter 3.7" W x 2.1" H, suitable for 5-20 gallon tanks. Fish tank mini sponge filters can be used in fish fry tanks, shrimp and betta tanks, freshwater and saltwater tanks