Features: 1.Humanized cover design, prevent from leakage meanwhile absorb the dirty objects. 2.Built in replaceable filter tank and special strong bioactive beads, It can achieve better the physical filtration effect and provide space for the nitrifying bacteria to attach. 3.Multifunctional: oxygen aeration, enhanced the filtering effect of organism and improve the stability of water quality of aquarium 4.Easy to use: You just need to connect to the discharging air pipe, put in water and open the air pump to clean the fish tank dirt. (Air pump is not included). 5.Made from plastic material, which is safe, solid and durable to use. Specification: Features: 1. Humanized cover design, prevent from leakage meanwhile absorb the dirty objects. 2. Built in replaceable filter tank and special strong bioactive beads, It can achieve better the physical filtration effect and provide space for the nitrifying bacteria to attach. 3. Multi-functional: oxygen aeration, enhanced the filtering effect of organism and improve the stability of water quality of aquarium. 4. Easy to use: You just need to connect to the discharging air pipe, put in water and open the air pump to clean the fish tank dirt. (Air pump is not included). 5. Made from plastic material, which is safe, solid and durable to use. Specification: Condition: Material: plastic Color: As Pictures Shown Size: approx.16*9cm/6.3*3.5in(H*W) Package list: 1 * Aquarium Filter Bucket Note: Please note that the product requires an air pump of more than 5W to drive it.