About This

• 🐟 [HITOP Diameter 4in Round Sponge Filter for 5-40Gal] This Aquarium sponge filter should be used together with an air pump and cannot be used alone. (The air pump isn't included and should be bought separately.) And it adopts round sponge to increase the surface of filtration that is good to filtering efficiency. The dense sponge can effectively absorb impurities, bacteria, feces and debris in the aquarium, keeping the fish tank crystal clear.
• 🐟 [Easy to use] Come with a complete sponge filter and 3.2ft air tube, you just need to connect the air tube with air pump. Put the sponge in the tank and press it several times to fully absorb tank water to make it sink to the bottom. With a weighted base, the filter will not float on the water surface. Can be well hidden behind the decorations.
• 🐟 [Filtration and oxygenation] When the air pump provides air to the fish tank, the air passes through the filter, causing a difference in air pressure, and the water flows from the side with high pressure to the side with low pressure to achieve the filtering and oxygenation effect. Air pump is not included.
• 🐟 [Ultra-Quiet & Energy-saving] Powered by air, this aquarium filter works silently and have no impact with your lovely fish and human life, safer for young fish. Air pump and this sponge filter share the same power source, more power saving.
• 🐟 [Application] With simple but unique design, this internal submersible filter can be used in both salt water and freshwater. Suitable for 5-40gallon fish tank(Tank height should be more than 7in). Excellent for small size fish like betta, dwarf cichlid, guppy, killifish etc., shrimp, breeding.