Blumec 01 is the replacement sponge set for the Bluwave 01 internal filter, perfect for both freshwater and marine aquariums. These sponges ensure effective filtration, keeping water clear and odor-free. The set includes a fine mesh sponge to capture suspended particles and an activated carbon sponge for adsorptive filtration, which neutralizes odors and impurities. Made from durable and non-toxic materials, Blumec 01 sponges provide a safe and healthy environment for all aquarium inhabitants.