hygger Aquarium HOB Filter 210 GPH – External Hang-On Back Filter for 15-40 Gallon Tanks

Compact, powerful filtration for your 15-40 gallon aquarium

The hygger Aquarium HOB Filter delivers steady circulation and reliable filtration without occupying valuable tank space. Designed to hang on the back of your tank, it provides a 210 GPH turnover to support healthy water movement while keeping the interior visually uncluttered.

In practice, you will notice a gentle mini waterfall as filtered water returns to the tank. The subtle trickle enhances surface agitation and oxygen exchange, helping fish feel more comfortable and observers to enjoy the calm, living motion of the aquarium.

Flexible setup and easy maintenance

The extendable intake tube provides flexible positioning for different tank depths. A top-flow knob lets you dial in the flow to match your needs. The inlet sponge helps prevent small fish or shrimp from being drawn in, and an indicator light reminds you when to replace filter pads.

• Saves space by mounting outside the tank, keeping your aquarium interior uncluttered.
• Easy maintenance: no need to reach inside the tank during cleaning.
• Gentle water return enhances surface movement and oxygenation.
• Adjustable flow up to 210 GPH with the top knob.

Filtration versatility and ease of use

Two media options are included: a cartridge with dual-sided sponge cotton and activated carbon, plus a bio-filter plate for added surface area. Media can be added or replaced as needed for different hobbyist levels.

• Cartridge with sponge and carbon for odor control and clear water.
• Bio-filter plate provides broader bio filtration support.
• Inlet includes a sponge to prevent small tank inhabitants from being drawn in.
• Media customization keeps the filter fitting your setup over time.

The indicator light and replaceable components help you maintain consistent performance, while a space-saving design keeps the focus on your aquatic display.