Features: Sponge filter, Designed with high-quality materials, it is more durable than any sponge filter on the market. Safe and harmless to all fish. Good Filtration EffectAquarium Filter Accessories, Through biochemical filtration, impurities in the water can be filtered more effectively and the quality of the aquarium can be stabilized. This greatly increases the solubility of oxygen in the water and can keep your crystal aquarium clean. Design Aquarium Filter, This kind of living cotton is designed and manufactured with multi-layer principles, has the largest surface area and has no obstruction to water flow, helps to stabilize water quality, can absorb harmful substances and increase oxygen. Function Aquarium Betta Filter, Without any noise during operation, the diffuser can generate a large number of bubbles to increase the solubility of oxygen in the water. Usage Turbo Filter, It is suitable for fresh water and salt water, as well as the breeding of various ornamental fish, fish breeding and growth. It is especially suitable for breeding colorful fairy, small fish, shrimp tanks, aquariums, betta, etc. Delivery quantity: 1 piece