If you're looking for a replacement sponge for your 28 gallon JBJ aquarium, look no further. This sponge removes particulates and debris from your freshwater or saltwater tank. Clean water is important for the health of your fish and other animals.
Sponges should be replaced approximately every month in your filter to keep your water clean. However, it is recommended that you do not replace all of your filter media at once or else you will lose too much beneficial bacteria.