New water per se doesn't cause it, it is too big a water change, disturbing
the balance that causes it. Best explained here under Green Water and Water
Change Outs. http://www.koiclubsandiego.org/H2oQual.html ~ jan


On Mon, 12 Jul 2004 00:25:39 -0700, (melissa) wrote:

hello everybody!
new water added to ponds seems to be the cause of much green water
right? can one age the water, in a wheelbarrow or rubbermaid tub for
example, and then add it to the pond? will that put off the green water
enhancing property of added water? thanks for all answers to my silly
questions!

(Do you know where your water quality is?)