Hygger [ HG908-D-S ]

Hygger Aquarium Double Sponge Filter

  • Keep fish tank water sparkling clean super quiet and more delicate bubbles
  • More efficient and durable
  • Mechanical dissolved oxygen and cultivate beneficial bacteria
  • Easy to set up and clean
  • Suitable for shrimps, bettas, tropical fish, planted tanks or others
  • Can be run by most air pumps (larger than 5W)

Hygger Aquarium Double Sponge Filter


Multifunctional Aquarium Filter

With an air pump as the power source, this sponge aquarium filter combines bio-filtration, oxygenation, and physical filtration in one. The sponge can absorb fine particles to purify the water.

This filter also makes small water flow that is controlled by the air flow. The water flow is small and slow so that it does not impact the fish. It helps your small fish or shrimp to live a happy, healthy life.

Products info
Products info

Detachable Fine Filter Sponge

There are 2 kinds of filter material: filter cotton (sponge) and filter ceramic media. You can easily clean or replace the 2 sponges by taking them down from the filter. Note that don't use tap water to clean the sponges. Rinse or squeeze them with the aquarium water. The 2 sponges are fine 60 PPI (Pores Per Linear Inch) which means more surface area for beneficial little creatures to live on.

Replaceable Bio Filter Media Balls

The media balls provide a surface where helpful tiny creatures can live quickly. The filter package includes a small bag of ceramic media balls. 0.25 lb for small size, and 0.27 lb for medium size.

You can replace this ceramic media with other medias like carbon, ammonia absorbers, and anything that can keep your water sparkling clean. It is suggested to replace the ceramic media balls every 6 months or when the water permeability turns poor.

Products info
Products info

Suitable for Small and Medium Size Tank

The small sponge filter is suggested to be used for 10-40 gallons fish tanks. The medium sponge filter is suggested to be used for 15 to 55 gallons fish tanks. For larger tank, you may need 2 of this filter. Suitable for freshwater and saltwater shrimp tanks, betta fish tanks, breeding ponds, goldfish, discus, crayfish, deep-fresh fish, juvenile fish, and other fish.

Easy to Set Up the Aquarium Filter

Step 1: Remove the 2 spare sponges from the filter media container.

Step 2: Open the ceramic pearls package. Rinse two sponges, the ceramic pearls, and all parts with clean water from tank in order to remove any debris or dust.

Step 3: Soak the two sponges and ceramic pearls in tank water for 10 minutes.

Step 4: Divide the ceramic pearls in half and pour into the two ceramic pearls containers, then secure the lid to the ceramic pearls container well.

Step 5: Secure the two sponges to the filter.

Step 6: Install the suction cups onto the outlet pipe.

Step 7: Install the retractable outlet pipe on the T-connector.

Step 8: Place the filter on the back wall of the aquarium with two suction cups. Make sure the double sponge filter is oriented vertically, otherwise the pipe will be blocked by the ceramic pearls.

Step 9: Connect the filter to air pump with an air tube, equipped with a check valve on the air tube to prevent flow-back of water during power failure.

Step 10: Make sure all the connection is firm, then turn on the air pump.

Products info

 Warm Tips to Use the Aquarium Filter

1. When using for the first time, squeeze the sponge filter into the water tank for 5 minutes, which makes it easy to filter.

2. Use the water in the aquarium instead of tap water when washing the sponge.

3. It is recommended to replace the sponge and bio ceramic balls every 6-8 months.

4. This aquarium filter needs to be equipped with an separate air pump.

 Product Parameters

Model Size Sponge Dimension Inner Diameter of Sponge Applicable Tank Size Applicable Air Pump Retractable Outlet Pipe Length Capacity of Ceramic Pearls Container
HG-908 S 1.97"D x 4.33"H 0.51" < 40 Gallons 2.5 W 6.1" - 9.25" 100 ml
M 2.36"D x 5.12''H 0.62" < 55 Gallons 4 W 200 ml

 Packing List

  • Retractable Outlet Pipe with Air Tube Connection x1
  • Double Sponge Filter with Media Container x1
  • A Bag of Ceramic Media Balls x1
  • Suction Cup x2
  • Sponge Replacement (In Filter Media Container) x2
  • User Manual x1