ALEGI Aquarium Sponge Filter, Medium 4-Pack for 75.7–189 L Tanks

ALEGI Aquarium Sponge Filter is a four-piece filtration set for shrimp, fish, betta and breeding tanks, with each filter recommended for aquariums of 20–50 gallons (76–189 L).

• Mechanical and biological filtration — supports two filtration functions in one sponge filter.
• Four filters, four check valves, four control valves and four suction cups — includes components for setting up each filter.
• Recommended for 20–50 gallon aquariums per filter — helps you match a filter to your tank size.
• Check valves on the air hoses — help prevent water backflow and air pump damage during a power outage.
• Rinse and squeeze the sponge in tank water — a straightforward cleaning method.

For aquariums housing shrimp, fish, bettas or fry, filtration needs to suit both the tank and its inhabitants. ALEGI’s sponge filters connect to an air pump with an airline and provide mechanical and biological filtration while helping clean and oxygenate the aquarium. The set is intended for aquarium use, including breeding setups, rather than as a standalone air pump.

What tank size is each ALEGI sponge filter for?

Each filter is recommended for a 20–50 gallon aquarium. Choose the filter based on the capacity of the individual tank; the four filters do not change the stated recommendation for each unit. The sponge-filter design suits fish, shrimp and betta tanks, as well as breeding and fry setups.

• Recommended tank capacity applies to each filter.
• Suitable tank uses include shrimp, fish, betta and breeding aquariums.

How does the ALEGI Aquarium Sponge Filter connect?

Connect one end of an airline to an air pump and the other end to the filter, then turn on the pump. The air-driven setup helps clean and oxygenate the aquarium, while the sponge provides mechanical and biological filtration. A check valve on the air hose helps guard against backflow if power is interrupted.

• Setup requires an air pump and an airline connection.
• Each filter set includes a check valve and a control valve.

What comes in the four-piece ALEGI filter set, and how do you clean it?

The set contains four sponge filters, four non-return check valves, four control valves and four suction cups. To clean a sponge, rinse and squeeze it in water taken from the aquarium. This gives you a simple maintenance method for the sponge without adding a different cleaning step.

• Four suction cups are included for the filter setup.
• Clean the sponge using tank water.

ALEGI Aquarium Sponge Filter suits aquarium keepers setting up fish, shrimp, betta or breeding tanks who want sponge-based filtration with an air-pump connection. Its four filters are each recommended for 20–50 gallon aquariums, and the set includes check valves, control valves and suction cups for the setup.