Pond Life wrote:
and this...
http://tinyurl.com/6gaheb




There may be life on this list after all.

The above mentions that his veggie filter comes after his mechanical
filter and his BIO filter. I thought the veggie filter is a bio filter.

If I have this straight, it goes like this-

pond mech bio veggie bottom overflows veggie top back to pond
via falls

What is the bio filtering, how is it doing it, and why is it needed with
a veggie filter?

Chip