[MysticKoi]

Jim,

I can see where your logic is taking you, but I simply don't have the answers you are looking for.

Quote: But then again, all bacteria house on the contact points with other bacteria house, and all plastic media of the barrel design, as well all all ceramic 'noodle' media, has 'quiet space' in them?

Of course they do, however the Chip was designed specifically for use in a fluidized envornment. These other media types you mention, are of course static and have no dynamic forces. I think perhaps it difficult to draw analogies from a static media to a fluidized environment?

Quote: And IF quite spaces are the domain of special 'other creatures' is this area then lost to biofilm, thus reducing the total surface space of biofilm from the quoted statistics? See what I mean when I said before that I don't see how the biofilm would be less in the internal areas allowing for the quite area to be the residence of higher forms of life more interested in organic fines?

Like I said in a previous post... I haven't seen any "critters" inside of either of the Kaldnes varients, including micro-photographs. Instead, the inner areas of Kaldnes media have thick bio-films. These protezoa types are, however, present in the Chips, I can see them easily! Why this may be so, I simply don't know. Perhaps something we both can discuss over a cold beverage (on me of course) with Jasper someday?

Kind Regards,
Bill