The Replacement Bio-Sponge for the Penn Plax Cascade Internal Filter optimizes colonization of beneficial aerobic bacteria and removes ammonia and nitrites. Quick and easy to replaceConvenient, no-fuss replacement spongeReplace monthly for optimum water qualitySpecifications: Fits Penn-Plax Cascade 400 Internal Filter.
Efficient Aquarium Filtration
Keep your aquatic pets thriving with this highly absorbent bio sponge, engineered to provide superior mechanical filtration and foster beneficial bacteria colonies.
Optimized Water Quality
Upgrade your tank’s ecosystem with this sponge’s unmatched capacity to remove debris and waste, ensuring crystal clear water and a healthier environment for your fish.
The Replacement Bio-Sponge for the Penn Plax Cascade Internal Filter optimizes colonization of beneficial aerobic bacteria and removes ammonia and nitrites.
