On Sun, 30 May 2004 09:07:07 +0100, "Dan"
wrote:

Anyway mum decided to replace around 2/3 of the water in the pond which im
not sure was a great idea since the algae in there fed like mad and made it
as much of a pea soup as it was before.

Yup, not a good idea, unless there's a serious toxic chemical problem like
pesticides or runoff, one should never do more than a 25% change. Hard on
the critters and upsets any balance one is trying to achieve. You might
want to send her this website: http://www.koiclubsandiego.org/H2oQual.html
and tell her to read Water Change Outs and Green Water. ~ jan


(Do you know where your water quality is?)