15W 5-in-1 Fish Tank Filter Portable Silent Aquarium Internal Filter Oxygen Submersible Fish Tank

⚠️⚠️⚠️Precautions:1、Always fully submerge the pump in water during use.2、Water in the tank will gradually evaporate — please make sure to replenish it regularly to keep the water level above the top of the pump at all times!Otherwise, the motor may run idle and overheat, leading to damage.3. The transparent hose must be placed outside the fish tank and must not allow water to enter inside.⚠️⚠️⚠️ NOTE: Sponge included only! - Bio filter media sold separately Key Features:✔ All-in-One Filtration - Mechanical (sponge) + optional bio/chemical filtration✔ Adjustable Flow - Customizable water circulation for all tank sizes✔ Energy Efficient - Low-power operation with strong performance✔ Universal Use - Freshwater & saltwater compatible