Aquarium Moving Bed Filter Media 1 Gallon For Fish Tank Sump Koi Pond Aquaponics Aquaculture Hydroponics (S)

Features: Can be used for DIY in-tank or sump moving bed filters. An air pump is needed to make the filter media to move it would be more efficient if there are micro bubbles in water. The media to water ratio: 15%-65% 5-room design offer more surface area for filtration capacity It takes 1-6 weeks to be fully fluidized. Self Cleaning – never requires cleaning or being replaced Size: 10mm (D) x 7mm (H) each piece Specification: Size: 3/7 (D) x 4/15 (H) each piece Specific surface area: 61 square feet per gallon of media Dosing ratio: 15%-65% Material: HDPE Life-span: >10years Membrane forming: 1-6 weeks. Includes: 1 Gallon of moving bed filter media