Pawfly Aquarium Hang On Filter for Small Tanks up to 5 Gallons

The double filtration mechanical filtration system effectively traps large debris, food residues, excrement or wastes, while the biological filtration process cultivates beneficial microorganisms to clear up the filth of algae. The telescopic oil film skimmer can automatically float to the water surface and rotate 360° continuously with the water flow, greatly absorbing the oil film on the water surface to keep the fish tank crystal clear, aerated and healthy.

With a maximum flow rate of 60 GPH (250 L/h), the power consumption is only 3.8 W, operating on 110-120 V at 60 Hz. The adjustable water flow control allows users to customize the intake according to their tank size, reducing the flow for delicate fish, shrimp, plants or other underwater life. The extended water inlet tube can be customized in length to suit individual needs.

The gentle waterfall from the outlet hits the water surface to avoid splashing and noise, promoting water circulation and increasing dissolved oxygen. Featuring a compact and delicate body, the fish tank hang-on-back (HOB) filter is easily hidden behind the tank, making it an ideal choice for nano aquariums or landscaping tanks up to 5 gallons. With noise levels less than 30 dB, it is suitable for fish that are afraid of motor noise.

The UL-certified power cord ensures safety and long-term use, and the filter will automatically restart after a power failure without the need to add water again. The installation process is straightforward: first, remove the sponge before filling with water; second, add water until the level is close to the filter outlet; and finally, power on the filter, wait for it to function properly, then insert the sponge. Inserting the sponges first will block the outlet of the water pump, causing slow water intake and loud noise.

The multiple filtration system, with two bio sponges for double filtration, effectively traps debris or wastes and accumulates nitrate, providing both mechanical and biological filtration to fully remove harmful substances. The compact and quiet design, along with the adjustable water flow, makes this fish tank HOB filter an excellent choice for aquarium enthusiasts seeking a reliable and efficient filtration solution.

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