Porous ceramic rods for the biological-media compartment of aquarium and pond filters. The grooved polygon shape and hollow centre allow water to move around the media.
Product details
Choose Small Polygon or Large Polygon; each option contains 10 pieces
Large pieces: approximately 16 × 3.6 × 3.6 cm
Check compartment clearance before ordering
Use and care
Rinse off loose dust and position after mechanical filtration. Leave space for water flow. Bacteria establish over time; continue normal cycling, testing and water changes.
