LTWHOME Aquarium Fish Tank Biochemical Filter Sponge,3.34 Inch x 1.96 Inch (HD) (Pack of 6) Foam Each Size : 198mm

Foam Each Size : 198mm diameter and 50mm (2") thick

Repeat after 4 - 6 weeks depending on stocking levels

Pack of 8 Blue Coarse Foams

The bio sponge filters optimize the colonization of beneficial aerobic bacterias which keeps the water fresh and clean to provide a better quality of living for your fish

LTWHOME Aquarium Fish Tank Biochemical Filter Sponge,3.34 Inch x 1.96 Inch (HD) (Pack of 6) Foam Each Size : 198mmPacking include: 6pcs filter sponge. Size: 8. 5 x 5cm 3. 34" x 1. 96"(H*D), 2. 1cm 0. 82"(Inner Hole Dia) Provides efficient water flow with less clogging for long lasting filtration. Enhances biological filtration. Change every 3 4 weeks.