Some things I know some things I don't?
I bought a bag of the biochips media for each of my two DIY moving bed filters using K1. The story of these biochips creating tiny protected zones using the surface tension of water to create mini habitats for micro animals that feed on larger particles suspended in the water seemed to have some merit to me. They are not designed primarily as bacteria media but as mini habitats for tiny organisms that require a quiet zone to thrive. You can go to Evolution Aqua's website at
Koi Pond Filters | Buy Bio Chip | Evolution Aqua Ltd
and read this information and view the microscopic photos for yourself. I can't say that my water quality has changed significantly in the past 16 months after placing these chips in my K1 chambers. However since my fish load has increased maybe this is some incidental proof of benefit?