Feature(may vary by option.)

●A must-have item for your fish breeding: This sponge filter is widely used by beginners and advanced people. This is a must-have item for your fish breeding that can be easily used by anyone
●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 small aquariums: The twin type has 2 small sponges that are 3.1 inches (8 cm) tall x 1.9 inches (4.8 cm) wide, so it can be used for small aquariums with little space. Attaches with suction cups
●Adjustable Length & 360° Rotatable: The exhaust pipe can be adjusted from 6.3 to 8.5 inches (16 to 21.5 cm). The direction of the sponge can be rotated 360°, so it can be flexibly fitted to the shape of the aquarium
●(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

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Description