HOD HEALTH AND HOME Australia has been operating online and instore for 8 years. All products come with a 1 year warranty, fast shipping and special offers added to our site daily.. Keep Your Aquarium Water Clean And Stable With This Double Head Sponge Filter With Bio Media Specially Designed For Shrimp Tanks Breeding Setups And Small To Medium-Sized Aquariums. The Filter Uses An Air-Driven System To Draw Water Through High-Density Environmental Sponge Providing Both Mechanical And Biological Filtration. The Built-In Media Containers Can Hold Various Bio Media Like Ceramic Rings Or Quartz Balls Enhancing Beneficial Bacteria Growth And Supporting The Nitrogen Cycle. Ideal For Gentle Filtration In Tanks With Fry Or Shrimp This Unit Also Assists In Oxygenation When Connected To An Air Pump (Required Not Included). Features Double Sponge Filter: Combines Mechanical Filtration With Biological Filtration For Cleaner Healthier Aquariums. High-Density Sponge: Traps Debris While Preserving Young Shrimp And Fry Making It Ideal For Breeding Tanks. Two Media Boxes: Total Volume 100Ml Suitable For Ceramic Rings Quartz Balls Or Other Bio Media (Avoid Small Particles To Prevent Blockage). Quiet Operation: Low-Resistance Airflow Helps Maintain Stable Water Quality And Oxygenation. Compatible With 4Mm Inner Diameter Air Tubing: Suitable For Shrimp Tanks Nano Tanks And Secondary Filtration In Medium To Large Tanks. Specifications Material: Plastic + Sponge