aquamom44 switched over to the nano micron “because of my shrimp, it still blows co2 bubbles around, but adds as an extra filtration unit. I'm in love.... | By SICCE | Facebook
Amazon.com : SICCE MICRON Internal Filter, 65GPH – Interchangeable Cartridge, Filter Media Included : Aquarium Filters : Pet Supplies
Amazon.com : Sicce Nano Micron Internal Filter, 53GPH - Interchangeable Cartridge, Filter Media Included : Pet Supplies