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Juwel Nitrax Bioflow 3.0 6.0 8.0 Green fish tank, biochemical filter cotton, aquarium biochemical cotton|cotton tank|cotton greentank fish - AliExpress
German Juwel Bioflow Filtersystems Aquarium Filter Fish Tank Water Filter Oxygen Pump Low Water Level Mini Built in Ultra Mute|Filters & Accessories| - AliExpress
LTWHOME Compatible Medium Aquarium Foam Filter Pads Fit for Juwel Compact / Bioflow 3.0|fish tank|foam filterjuwel filter pads - AliExpress