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Nano Cube Replacement Sponges
You should replace the sponges on your JBJ Nano Cube. Sponges facilitate the growth of beneficial bacteria as well as remove larger size particles from your aquarium - tank.
6 Gallon -for 12-gallon Nano Tank
24-gallon Nano Cubes Replacement Sponge
28-gallon Nano Cubes Sponge
Rimless Aquarium
Our replacement sponges come in a few different sizes.
Please make sure to choose the correct one for the size of your aquarium.