Synthetic sponge ideal for mechanical filtration and biological filtering in freshwater and saltwater aquariums. It can be easily cut to the desired size to fit all types of internal, external filters or sumps.

• Mechanical water filtration with quick removal of dirt particles
• Substrate for establishing beneficial bacterial flora useful for biological filtration
• Clear and crystal-clear water thanks to the removal of particles that cause cloudiness
• Non-toxic to aquarium inhabitants