®óñ© © ²°¹°-°³ writes
On Mon, 21 May 2007 11:50:43 GMT, "Alan Holmes"
wrote and included this (or some of this):

As I've said before, I kept tropical fish for many years, breeding them for
sale to the local tropical fish shop, and I never, ever changed the water.

If your tank had a proper number of plants in it the water will stay
healthy.

I am not aware that, in the wild, it is necessary to change the water
in lakes, ponds, streams, rills etc or even to partially change it..


Streams and rills certainly have water changes ;-)
--
Kay