I dont make 10% water changes each week. I change out about 1/3 a couple times a
year. Altho I do have a veggie filter and the plants remove a lot of "stuff". Ingrid

On Mon, 18 Feb 2008 17:35:36 CST, Joe wrote:
You will want to
make water changes of about 10% every few weeks (depending on fish load.) If
you don't remove water, impurities tend to stay - despite good filtration.