Model: Venus Aqua JX-155 Type: Sponge Suitable Water Volume: 50 L Filtering Area: 100 sq. cm Aquarium Internal Venus Aqua Sponge Filter Jx-155 Use With Help Of Aquarium Air Pump Ideal For Fresh Water And Marine Aquarium Clean Sponge After Every 7 To 15 Days Do Not Use Soap To Clean Sponge