![Amazon.com: K1 Bio Filter Media Moving Bed Biofilm Reactor (MBBR) for Aquaponics, Aquaculture, Hydroponics - Ponds - Aquariums by Wholesale Koi Farm, 1 Cubic Foot : Patio, Lawn & Garden Amazon.com: K1 Bio Filter Media Moving Bed Biofilm Reactor (MBBR) for Aquaponics, Aquaculture, Hydroponics - Ponds - Aquariums by Wholesale Koi Farm, 1 Cubic Foot : Patio, Lawn & Garden](https://m.media-amazon.com/images/I/71T2HS6cAsL.jpg)
Amazon.com: K1 Bio Filter Media Moving Bed Biofilm Reactor (MBBR) for Aquaponics, Aquaculture, Hydroponics - Ponds - Aquariums by Wholesale Koi Farm, 1 Cubic Foot : Patio, Lawn & Garden
![Evolution Aqua K1 Micro Media - 1.76 cu ft (50L) [MICRO50] - $195.49 : Sea Side Aquatics, The Best Out There Evolution Aqua K1 Micro Media - 1.76 cu ft (50L) [MICRO50] - $195.49 : Sea Side Aquatics, The Best Out There](https://www.seasideaquatics.com/pond/images/evolution-aqua-k1-micro-media-176-cu-ft-50l.jpg)
Evolution Aqua K1 Micro Media - 1.76 cu ft (50L) [MICRO50] - $195.49 : Sea Side Aquatics, The Best Out There
![Amazon.com: K1 Bio Filter Media Moving Bed Biofilm Reactor (MBBR) for Aquaponics, Aquaculture, Hydroponics - Ponds - Aquariums by Wholesale Koi Farm, (2 Gallons) : Pet Supplies Amazon.com: K1 Bio Filter Media Moving Bed Biofilm Reactor (MBBR) for Aquaponics, Aquaculture, Hydroponics - Ponds - Aquariums by Wholesale Koi Farm, (2 Gallons) : Pet Supplies](https://m.media-amazon.com/images/I/71d0Ntt+7gL.jpg)