- The sponge filter provides biological filtration, and the air intake chamber produces fine bubbles that increase oxygen solubility. - Creates crystal-clear water, ideal for small aquariums. - Convenient and easy maintenance. - Applicable to different filtration systems as a conditioning stage. - Uses environmentally friendly high-level sponge as a filter, and an air pump. - Ensures effective nitrifying bacteria culture, achieving cleanliness and stability in water quality, with efficient oxygen sorting and water quality.