Physical filtration and biofiltration, efficiently replenish water flow and oxygen in the aquarium. High performance sponge provides effective filtration Unlike external filters, the gentle water flow passes through the sponge, so there is no need to worry about sucking in your fried fish or shrimp. In addition, since it does not use adsorption material such as activated carbon, it is perfect for when using medications for therapeutic purposes. Compatible Water Volume: 3.1 gal (15 L) or less. When using this product, an air pump (sold separately).
Before use, please gently wash the dust or other particles attached to the product with tap or warm water. Connect the air pump to the air tube pipe. Install the sponge filter in the aquarium