"Sean Dinh" wrote in message
...
A little concrete is not going to hurt the fish. In my case, I used 70#
concrete
in a pond of only 300 gallons. I only hose off the dirt once before I
filled the
pond and added the fish.
snip
I concur. I started cementing my stream this year, and after a day or so of
curing, the stream was turned back on. No harm to fish.
BV.
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