Eheim Substrat Pro Biological Filter Media (Sintered Pearl-Shaped Glass) 2L

• Made of highly porous artifiical sintered glass material
• Unbeatable surface area structure of 1800 sq ft per gallon
• Can be reused by lightly rinsing with aquarium water every 1 to 3 months and replaced every 3 to 6 months
• Provides longer intervals between required maintenance
• For use in all EHEIM filters (Classic, Ecco, Pro 3, Pro 3e)

Product Description EHEIM Substrat Pro Biological filter media is specially shaped to create a better water throughflow to provide longer intervals between required maintenance. Its open structure for enhanced water penetration provides better bacterial colonization. Directions Rinse thoroughly before use in fresh or marine water. For maintenance, wash with lukewarm water and reuse.