wrote in message
...
"the increase in toxicity while the rise in pH from 7.0 to 9.0 is
responsible for
90%." a pond with reasonable buffering in the tap water (people who arent
using
softened water) will not rise over pH 8. the "new" water will replenish
the buffer
if it was low for some reason.

so the answer for fish seriously in trouble is to replace 100% of the
water, that is,
drain the pond and move the fish to fresh water. Ingrid

Uh don't you mean...

Move the fish to fresh water and THEN drain the pond.




--
BV
Webporgmaster of iheartmypond.com
Check out the IHMP forums, ihmp.net/phpbb
I'll be leaning on the bus stop post.