💧 Dive into a Cleaner, Greener Aquatic World! Your peace of mind is our priority—100% satisfaction or your money back! Self-cleaning design means less hassle for you! Supports ammonia conversion for a thriving aquatic environment. Transform your fish and plant life with optimal biofilm growth! Perfect for aquariums, ponds, aquaponics, and hydroponics. 2 Gallon Capacity >1,000 m²/m³ Surface Area Self-Cleaning Design The K3 Moving-Bed Biofilm Reactor Filter Media (MBBR) is a high-performance filtration solution designed for aquaponics, aquaculture, and hydroponics. With a capacity of 2 gallons and a surface area exceeding 1,000 m²/m³, it promotes the growth of beneficial bacteria essential for the nitrification cycle. Made from durable virgin HDPE, this self-cleaning media is easy to use and maintain, making it an ideal choice for both freshwater and marine environments.