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Amazon.com : Carefree Fish Aquarium Hang On Waterfall Filter Fish Tank Auxiliary Filter with Skimmer Increase Water Flow and Oxygen Remove Oil Film Simulated Waterfall Ecological Environment : Pet Supplies
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Amazon.com : Ultra Quiet Fish Tank Filter 4-in-1 Internal Aquarium Filter,500-1800L/H Submersible Water Filter Pump Multifunctional Filter Water Pump for Betta, Turtle, Pond Fish, Garden. (6W 134GPH (500L/H)) : Pet Supplies
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Can I put pantyhose over my filter intake to stop my betta from hurting his tail? Details in comments. : r/Aquariums
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