@Blountville
Like this?
…and it’s funny you bring it up as I just posted it.
Generally, Hydroponic growers strive for sterile conditions. Any Biofilter will hold bacterial matter indefinitely, with correct conditions. That goes for positive and negative bacterial matter. While positive bacterial matter is generally a good thing when negative bacterial matter is present, it not necessarily something you want to promote if not needed. You’re asking for problems, IMO.
In my case with Aquaponics, I want bacterial matter to grow, and that’s why I use a Moving Biofilter