NEZO 8x8x4 inch Ceramic Filter Media - High Surface Area, Open-Flow Porosity for Marine & Freshwater Aquariums - Efficient Ammonia, Nitrate & Nitrite Removal Filter Media Ceramic Whether you’re building a koi

Whether you’re building a koi pond filter system or upgrading your aquarium bio filter

Its sturdy construction withstands continuous water flow without easily breaking down

and nitrates while maintaining stable pH levels in your aquarium system

This bulk pack offers great value

NEZO 8x8x4 inch Ceramic Filter Media - High Surface Area, Open-Flow Porosity for Marine & Freshwater Aquariums - Efficient Ammonia, Nitrate & Nitrite Removal Filter Media Ceramic Whether you’re building a koiADVANCED FILTRATION: Ceramic filter media with interconnected porous structure provides superior biological filtration for both marine and freshwater aquarium systems DIMENSIONS: Large 8x8x4 inch ceramic block offers extensive surface area for beneficial bacteria colonization and efficient water purification WATER QUALITY: Effectively processes ammonia, nitrites, and nitrates while maintaining stable pH levels in your aquarium system DURABLE DESIGN: