Need a replacement sponge for your 6 gallon Nano Cube aquarium? You're in the right place. This sponge from JBJ removes particulates and debris from your freshwater or saltwater tank. Clean water is important for the health of your fish and other animals.
The sponge should be replaced approximately every month in your filter. However, you should not replace all of your filter media at once, or else you might lose too many beneficial microbes.