Tetra Filter Replacement Sponge Gentle On Fry Oxygen Supply Air Pump Type Black P-I/PII - - - -

Replacement sponge for P-I / P-II filters Tetra's sponge filters, loved by people all over the world, utilize a sponge with countless micropores developed by Tetra to support the growth of bacteria while achieving efficient filtration. We create the optimal environment for fish growth, spawning, and hatching. Easy to clean. Various sizes are available to suit your aquarium. The sponge provides effective filtration.