Fluval AC20 Foam Filter Insert, Blue, 1 Pack

• Bio-Foam removes particles and debris from aquarium water for mechanical filtration. It serves as a powerful biological media due to its ultra dense 30PPI construction. It creates an ideal environment for beneficial bacteria to establish and thrive.
• Premium biological and mechanical filter mediaEffectively traps waste and debrisUltra dense 30PPI (Pores Per Inch) foam construction helps maintain even and consistent water flowIdeal surface to promote beneficial bacteria growth
• Custom fit with no gaps to maximize filtration efficiencyFor best results, replace every 2 monthsFor use in freshwater and saltwater aquariums
• Tropical, Freshwater, Saltwater, Goldfish, Betta, Shrimp, Cichlid
• Blue Bio-Foam; 1.57 x 2.24 x 2.75 in block