3-in-1 Self-Cleaning Aquarium Filter and Air Pump System - Ultra-Quiet Aquarium Pump with Biological Oxygenation Function, No External Power Supply/Electronic Equipment Required

Product Description:
Pneumatic Aquarium Sponge Filter: This is an air-driven filter that requires connection to an air pump to operate. Note: The air pump and airline tubing are not included; please provide your own.
Efficient Filtration for Crystal-Clear Water: The AQQA sponge filter combines mechanical and biological filtration. The soft sponge traps suspended debris for mechanical filtration, while the bio-ceramic media balls help break down harmful substances and cultivate beneficial nitrifying bacteria, providing biological filtration.
Multifunctional Aquarium Filter: Integrating filtration, aeration, and water circulation, this filter helps maintain clear water and creates a healthy environment for aquatic life.
Weighted Base for Stability: This upgraded filter features a weighted base to ensure it stays securely at the bottom—no need to worry about it floating up!
Versatile Application: The AQQA sponge filter is suitable for fry breeding tanks, shrimp tanks, betta tanks, and both freshwater and saltwater aquariums. The small size is ideal for 5–20 gallon tanks, while the medium size is suitable for 20–110 gallon tanks.