Features:
The arms holding the sponges are adjustable to position the sponges better away from the tank walls. This filter is perfect for tanks housing baby fry or shrimp as they will not get sucked up and have a food source to eat off the sponge. Efficient product for the price and some fish will enjoy the decreased current in the tank.
The nozzle is adjustable which means you can point the flow toward the side of the tank to lessen it if you wish
Sponge filters provide both mechanical and biological filtration
Aerobic bacteria colonize the sponge providing a bacterial substance to facilitate the nitrogen cycle
In addition, the sponge traps larger waste particles mechanically cleaning the water without trapping baby fish
They are useful for as breeding filter or as secondary filter
Or they can be used as pre-filtration unit by fitting to an external or a top filter

Package Includes:
1 x Air Pump Double Sponge Water Filter for Aquarium

• Made of food-grade materials,absolutely safe and filter operation is no noise【Max Tank Size: 60 Gallons】
• Sponge filters provide both mechanical and biological filtration -- Simple, effective,easy to clean (squeeze in tank water), Working perfect getting your fish tank water super clean and clear.
• Easy to use: Simply install an airline tubing and an air pump into the unit,The water flow exit tube on the sponge filter is adjustable so you can change direction and height of the water flow
• Dual sponge design, it quickly established a biofilter, two sponges means more surface area for bacteria and faster cycling
• Can be installed anywhere and can be easily hidden on the back wall of the aquarium; ideal for shrimp tanks, crayfish, fry, fish or breeder aquariums.