Fluval AquaClear AC 20 Bio-Foam Insert removes particles and debris from aquarium water for effective mechanical filtration. It also serves double duty as a powerful biological media thanks to its ultra-dense 30 PPI construction. Features: Premium biological and mechanical filter media Effectively traps waste and debris – Ultra dense 30PPI (Pores Per Inch) foam construction helps maintain even and consistent water flow Ideal surface to promote beneficial bacteria growth Custom fit with no gaps to maximize filtration efficiency For best results, replace every 2 months – For use in freshwater and saltwater aquariums Dimensions: 8.38cm L x 7.62cm W x 9.91cm H (3.3″ L x 3″ W x 3.9″ H) Product Details: Pet Type: Tropical, Cichlid, Goldfish, Betta, Fish Product Type: Filter Media
