Collection: Biological Sponge Filter

Filters - Sponge145

Biological Sponge Filters are a great addition to any tank. We use sponge filters in all of our tanks under 100 gallons as the only filtration; plus we use them in our larger tanks instead of using air stones. Any time we need a sponge filter all we have to do is pull one out of a tank and instant cycle; and if the main filtration should fail the sponges help to avoid the tank crashing.