🐠 Dive into Clean Waters! Includes 3 sponge filters for a complete aquatic ecosystem. The air infusion chamber creates minute bubbles for optimal oxygen solubility. Quickly install and clean with minimal effort—just rinse and squeeze! Soft sponge material ensures your fish stay safe while debris is trapped. Ideal for tanks up to 10 gallons, perfect for bettas and fry. 3-pack mechanical & bio filtration air infusion chamber The AQUANEAT 3 Pack Aquarium Bio Sponge Filter is designed for small tanks up to 10 gallons, providing both mechanical and biological filtration. Its soft sponge material ensures the safety of your fish while effectively trapping debris. The air infusion chamber enhances oxygen solubility, making it perfect for delicate species like bettas and fry. Easy to set up and clean, this filter is a must-have for any aquarium enthusiast.