nanocubesponge
Nano Cube Sponge
Replacing your sponges every month on your JBJ Nano Cube is a good idea  Sponges are important to keep ammonia and nitrates-nitrates @ bay in yours saltwater or freshwater aquarium - tank. Replacement

Many of our Replacement sponges  for all of the nano cubes we offer ship in a variety of sizes.

Get the correct one for your aquarium

NANO CUBE SPONGE

 This is the replacement Sponge Fliter Media for the JBJ Nano Cube.