Amtra Wave A3061952 Filter Fine 18 x 12 cm

Package contents: The package contains a synthetic aquarium sponge, which is non-toxic and without any gaps. Size: 50 x 50/fine porosity 30 ppi ACTION: due to its special structure, the sponge retains dirt particles and serves as a support for the installation of the bacterial flora necessary for biological filtration of the water REUSABLE: By washing the sponge thoroughly under running water, you can use it several times. If used as a support for the installation of bacteria in the aquarium, cleaning is recommended only in the aquarium water previously drawn and placed in a bucket, so that the chlorine present in the tap water cannot kill the bacterial flora present BENEFITS: Clean and crystal clear water to remove particles that create turbidity ADAPTABLE: Can be easily trimmed to fit all types of internal, external or sump filters