Juwel bioPlus coarse XL Grobporiger Filterschwamm Mikrogranulat For the biological activation of

For the biological activation of filter material and substrate

the color may vary slightly from the product image

The zebra stone is slightly calcareous

as they can operate in shallow water with depths starting at 5 cm

Juwel bioPlus coarse XL Grobporiger Filterschwamm Mikrogranulat For the biological activation ofThe Juwel coarse filter sponge is used for the mechanical and biological filtration of your aquarium and is therefore an essential component of the JUWEL filter system. The coarse pore structure provides a large surface area and ensures a comparatively high and even flow rate of the water. This makes it particularly suitable for biological filtration in the aerobic range. The open pores of the Juwel filter sponge are achieved without the use of