Replaceable Sponge & Filter Media: can be easily disassembled for cleaning or replacement, and you can choose to replace different types of filter media. Multifunctional Sponge Filter: It integrates oxygenation, physical filtration and biological filtration to ensure that your small fish and shrimp get clean and clear water. Small & Compact Design: Takes up minimal space in the tank, and can be easily set up by simply connecting to the air pump. (Note: Air pump and air tube are not included) Ultra-quiet: Runs on air drive, is ultra-quiet, and comes with a small air stone for aeration, choose a powerful air pump that fits the size of your tank. Wide Application: Suitable for 4mm oxygen tube, small size is suitable for 35cm fish tank, large size is suitable for fish tank below 35-50cm, including breeding fish tank, shrimp tank, fighting fish tank, breeder tank, snail tank, small turtle tank, golden Shallow water tanks such as fish tanks. Description: Introducing our fish tank filter, a small and compact design that takes up minimal space in your tank. It's incredibly easy to set up - simply connect it to an air pump (note: air pump and air tube not included) and you're good to go! This multifunctional sponge filter is a game-changer for your aquatic pets. It integrates oxygenation, physical filtration, and biological filtration, ensuring that your small fish and shrimp have clean and clear water to thrive in. The sponge and filter media are replaceable! You can easily disassemble them for cleaning or replacement. Plus, you have the freedom to choose different types of filter media based on your specific needs. The ultra-quiet submersible filter and aeration pump run on air drive, providing a peaceful environment for your aquatic friends. We even include a small air stone for added aeration. Just make sure to select a powerful air pump that fits the size of your tank. This fish tank filter has a wide range of applications. It's suitable for 4mm oxygen tubes and comes in two sizes - small for 35cm tanks and large for tanks below 35-50cm. Whether you have a breeding fish tank, shrimp tank, fighting fish tank, breeder. Item Name: Fish Tank Filter Material: Plastic Features: Ultra-thin, Multifunctional Sponge, Ultra Quiet Size Details: S, Length: 8cm/3.15", Height: 5.5cm/2.17" (Approx.) L, Length: 10.5cm/4.13", Height: 5.5cm/2.17" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Fish Tank Filter