Feature(may vary by option.)

●A must-have item for your fish breeding: This sponge filter is widely used by beginners and advanced people. A must-have item for anyone who can use it easily
●Double Filtration: You can expect not only physical filtration with sponge, but also bio-filtration from bacteria that live in the sponge. The W filtration function of physical and biological filtration turns your aquarium into a clean and transparent stage
●Can be used for large aquariums: The large sponge is 3.9 inches (10 cm) tall x 4.3 inches (11 cm) wide, so it can be used for large aquariums. Use 2 side by side for twice the water quality
●(Easy to Clean) Just rub it with breeded water or clean water to complete the care. Please maintain once every 2-3 months. Please do not use tap water or boiling water as the bacteria breed on the sponge will kill bacteria
●How to Use: 1. Lightly wash the main unit with water before use. 2. Connect the air tube to the connecting part on the top of the main unit. 3. Set in the aquarium. Rub the sponge under water to release the air and allow it to sink easily

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Description