Air sponge filter, super quiet, provides both mechanical and biological filtration, increases oxygen, ventilation, filtration 3 in 1, suitable for fresh water and salt water 80pi 80ppi thin sponge with high density porous prevents the absorption of puppies into the filter system, 2 7 -layer sponge provides more surface areas for the growth of useful tiny creatures and imprisones floating rash and thin particles, keeping your fish tank in crystal clarity and cleaning, closer to natural water quality. . Easy to focus, no need for air stones, you can connect the air pipe to the air pump and connect to the air intake in the lifting pipe, bubbles go, both filtration and ventilation in a single solution keeps the water well oxygenated . Kolay is cleaned: Remove the sponge, rinse and squeeze it into tank water, we recommend that you clean the sponges regularly and regularly .[ Fits the aquarium size: 10 to 35 Gallon] Sponge filter comes with the following 1 bag 150 gr 2 1. What do you get: 1 x aquarium sponge filter, 1 bag x bio filter environment, 1 x retail package bag