boxtech Aquarium Nano Inner Filter, Quiet Aquarium Filter with Filter Media, Compact Filter for Shrimp, Betta & Breeding Tanks

• High-efficiency two-stage filtration: physical separation of impurities + biological degradation of harmful substances - small aquariums can also be crystal clear. Includes filter media
• 【Filtration, Bacterial Culture & Aeration】Multifunctional aquarium sponge filter, three-in-one filter culture bacteria oxygen supply, efficient removal of impurities in the aquarium, rapid cultivation of nitrifying bacteria, strong oxygen supply to increase dissolved oxygen
• 【Easy Maintenance & Transparent Chamber】Highly transparent housing – the condition of the filter media is clearly visible at a glance. Filter sponges and filter media are easy to remove, clean or replace; daily maintenance is quick and easy.
• Compact and easy to install: strong suction cups stick firmly to the glass pane. Suitable for 5-35L aquariums. It must be used with an air pump (the air pump is purchased separately).
• 【Universal Double Cylinder】Compatible with freshwater and saltwater aquariums, ideal for ornamental fish, shrimp, snails, corals and much more. – Meets a wide range of aquascaping and keeping requirements.

Product description High-efficiency two-stage filtration: physical separation of impurities + biological degradation of harmful substances - small aquariums can also be crystal clear. Includes filter media Filtering, bacterial culture & aeration: multifunctional aquarium sponge filter, three-in-one filter culture bacteria oxygen supply, efficient removal of impurities in the aquarium, fast culture of nitrifying bacteria, strong oxygen supply to increase dissolved oxygen. Easy maintenance & transparent chamber: highly transparent housing - the condition of the filter media is visible at a glance. Bar. Filter sponges and filter media are easy to remove, clean or replace; daily maintenance is quick and easy. Compact and easy to install: strong suction cups stick firmly to the glass pane. Suitable for 5-35L aquariums. It must be used with an air pump (the air pump is purchased separately). Double cylinder universal: compatible with fresh and saltwater aquariums, ideal for ornamental fish, shrimp, snails, corals and much more. – Meets a wide range of aquascaping and keeping requirements. Directions /