Overview K3 Bio Filter Media Moving Bed Biofilm Reactor (MBBR) is a versatile filtration medium designed for ponds, aquariums, aquaponics, and hydroponics

The media features an inner 19-chamber design that creates ample surface area for beneficial bacteria to colonize, supporting the nitrification cycle—ammonia to nitrite, nitrite to nitrate—within your system

With buoyant HDPE material and a density close to water, K3 Bio Media flows easily through your filter, whether used as a static bed or a moving-bed reactor

When configured as moving-bed media, it tumbles and turns in the current, promoting self-cleaning action that minimizes routine maintenance while maintaining healthy water conditions

Why this media stands out Large surface area (>1000 m2/m3) gives bacteria more space to anchor and grow

Self-cleaning behavior in moving-bed setups reduces chores and helps keep flow unobstructed

Ready for freshwater and marine systems, including ponds, aquariums, and hydroponic setups

Easy to install: works as a static bed or integrated with an air-pump and stone for moving-bed operation

Key specs at a glance Size 25mm x 12mm; Weight 15 lbs per package; Volume approximately 2 cubic feet

Material Virgin HDPE; high wear resistance and buoyancy suited for aquatic filtration

Coverage >1,000 m2 per cubic meter, enabling strong bacterial colonies for stable nitrification

Indoor and outdoor use, compatible across freshwater and marine environments

Practical applications include aquaponics, aquaculture, hydroponics, and ponds where healthy water conditions and plant life support are desired

The media’s efficacy, paired with straightforward use and low maintenance, makes it a thoughtful gift for hobbyists and professionals alike

Note: Product performance can vary with system setup; this media is designed to support the nitrification cycle and reduce maintenance through self-cleaning action and high surface area

FAQ Q: What systems is K3 Bio Filter Media suitable for

A: K3 works in freshwater and marine setups, including ponds, aquariums, aquaponics, aquaculture, and hydroponics, providing a large surface area for beneficial bacteria

Q: How does the self-cleaning feature benefit maintenance

A: In moving-bed use, media tumble and clean themselves, reducing manual cleaning while supporting stable water conditions