Why You’ll Love It
Utilizes multi-level filtration, and combined with mechanical filtration, the water filter can absorb fine particles to achieve the effect of purifying water in fish tanks of 0.5-55 gallons. The water flow is controlled by the airflow with an air pump as the power source, which is small and slow, and does not impact the fish.
Key Features
Multi-filtration Capabilities
The HG908 double-sponge fish tank water filter integrates bio-filtration, oxygenation, and physical filtration into one compact system, ensuring excellent water quality by maintaining a fine balance for your aquarium’s ecosystem.

Enhanced Efficiency and Durability
Equipped with double sponges, the hygger fish tank filter provides an expanded surface area for beneficial bacteria to filter the aquarium water, resulting in crystal clear conditions. It also effectively removes odd smells, enhancing the overall water quality.
Changeable Filter Media
The sponge filter has two kinds of replaceable filter materials, including sponge + ceramic filter balls. You can remove sponges for cleaning or replacement, with a total of 4 sponges. It also has 2 media boxes with ceramic filters to help eliminate debris and provide additional cleaning.
Upgraded Water Filter
It can increase the amount of water dissolved, and is not easy to block. The upgraded multi-layer design of filter cotton, with a large surface area, provides full filtration without dead ends. The bottom direction is 360 degrees rotatable.
Super Quiet Operation with Delicate Bubbles
The hidden outlet design reduces noise and produces more delicate bubbles, creating a serene and natural environment for your aquatic pets.

Usage Tips
1. Open the box and rinse the two sponges, ceramic beads, and all filter parts with the water from the fish tank. Then, soak the sponges and ceramic beads in the tank water for 10 minutes.
2. Split the ceramic pearls into two equal parts and pour them into the two designated ceramic bead containers.
3. Secure the lid to the ceramic pearl container and attach the two sponges to the filter.
4. Mount the retractable outlet pipe onto the T-connector.
5. Ensure the double sponge filter is positioned vertically to prevent the ceramic beads from blocking the pipe.
6. Connect the filter to an air pump using an air tube. Ensure the air tube is equipped with a check valve to prevent water backflow in case of a power failure.

Specification
The medium sponge filter is 6.3 inches wide and 9 to 13 inches in height; the sponge inside the circle diameter is 0.59 inches.
The small sponge filter is 6 inches wide and 9 to 13 inches in height; the sponge inside the circle is 0.39 inches.

Package:
1 x Retractable outlet pipe with air tube connection
1 x Double sponge filter with media container
1 x Ceramic pearls
2 x Suction cup
2 x Sponge Replacement (In ceramic pearls container)
1 x User manual

















Product did exactly what it was made for good product
they work great. my second one
just got this and it works well. I’ll buy another in the future for another tank.
Love the sponge filters…
Easy to set up, love that I can control the air output with a valve on my air pump & also change the direction of the air flow in the tank. Sticks to the side of my tank well too & does not take up a ton of space in my 40 gallon. You do need to buy an air pump & line separately FYI which are fairly cheap.
Well made, can be run with low to moderate air. Should do the job well.