Dual Bio Sponge Filter for Betta Fry Aquarium Up to 30 Gallon (4-Pack)

The AQUAPAPA sponge filters are a cost-effective and easy-to-use aquarium filtration solution that helps maintain clear and healthy tank water. These filters provide both mechanical and biological filtration for fish tanks ranging from 15 to 30 gallons.

The sponge filter's working mechanism is efficient and excellent for aquarium filtration. It functions by using an external air pump or an integral water pump to push air into the hollow cavity inside the sponge filter through tubing. The rising bubbles draw water through the sponge walls, providing filtration.

Maintenance of the AQUAPAPA sponge filters is straightforward. Simply scoop out some old tank water, wash the sponge in the water, and squeeze out the buildup until it's clean. The sponge should be cleaned monthly, and it's recommended to change 25-30% of the tank water weekly.

Key features of the AQUAPAPA sponge filters include: - Provides mechanical and biological filtration for both freshwater and saltwater tanks - Easy to set up by connecting to an air pump, which provides aeration and filtration - Traps waste particles and improves water clarity - Filters water without trapping small fish

The package includes four sponge filters, with each filter suitable for tanks up to 30 gallons. The air infusion chamber produces numerous minute bubbles, promoting gas exchange and increasing the dissolved oxygen level in the water, making it great for tanks ranging from 15 to 30 gallons.

The sponge filters are constructed with double sponges, measuring 5.8 inches wide and 6.25 inches high (with a telescopic tube that can extend to 9 inches high). They are designed to attach to the tank glass using two suction cups. All parts can be easily detached for cleaning or replacement, and the sponge should be washed with tank water instead of tap water.

The AQUAPAPA sponge filters are available in various sizes to accommodate different tank capacities, ranging from 5-10 gallons to 60-100 gallons. Customers have rated the filters highly, with an average of 4.6 out of 5 stars across 2,555 reviews.

product information: