Hi Dave,

When you have a falls,
does the water need less filtration?

It is more a function of how many fish, and what kind, you have in the pond.
I have very few goldfish in 3,000 gallons and use water hyacinths in the top
reservoir of my waterfall and watercress planted at the bottom of my waterfall
to filter my pond.


kathy :-)
A HREF="http://www.onceuponapond.com/"Once upon a pond/A