Hang-on-Back Aquarium Filter Box with Reusable Filter Media, Waterfall Oxygenation, Fits High & Low Water Level, for 1-5 Gallon Fish & Turtle Tank (Pump Not Included)

About this item

• UNIVERSAL PUMP COMPATIBILITY – Compatible with most water pumps on the market with 5/16" ID outlet and 3W+ power (pump sold separately). Unlike all-in-one filters with built-in pumps, our split design allows you to replace the pump independently without discarding the entire filter unit, helping you save on replacement and upgrade costs.
• DIY FILTRATION STAGES – Select 2/3/4 grid to tailor mechanical (white sponge), chemical(included carbon/Organic Filtration Resin), and biological(quartz balls/black sponge) filtration.Perfect for adapting to specific fish or turtle tank needs
• COMPLETE REUSABLE MEDIA KIT – Includes white & black pads, quartz balls and Organic Filtration Resin. All materials are rinseable and reusable, offering long-term value and reduced waste.(Included filter media varies by size. Please refer to the images for details)
• BETTER FOR BACTERIA CULTIVATION -The black filter box provides a lightless environment, which is more suitable for the survival and reproduction of beneficial bacteria, helping to maintain a stable water environment in the tank
• LOW WATER LEVEL COMPATIBLE – Specifically engineered for shallow setups where traditional HOB filters fail. Ideal for turtle tanks, breeding tanks, and low-profile aquariums requiring efficient flow,solving the problem of difficult filtration in shallow water environments