The coarse sponge serves for the mechanical and biological filtering of your aquarium, making it an essential component of the JUWEL filter system. The coarse pore structure gives a large surface area, guaranteeing relatively high and even water flow velocity. This means that it is particularly suited to biological filtering in the aerobic area. The open pores of the Aquacadabra coarse filter sponge were made without the use of chemicals, meaning that there is no residue. Characteristics of the Aquacadabra Compact (M) coarse foam media: Best mechanical and biological filtering characteristics Homogenous structure, guaranteeing even flow conditions No chemical residue Suitable for use in freshwater and saltwater aquariums Please note: these are not official Juwel media, but our own brand – the same great quality at a competitive price! These will fit your Compact (M) Juwel BioFlow Filter.
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