wrote in message
. com...
they live off the level of nitrates that are below testing levels. I
have never had a healthy pond test anything but zero to all three
tests. Ingrid

Are you saying that you've never had a healthy pond that didn't have zero
levels of nitrates? If so, you are one of the few out there that have.

On Wed, 27 Jun 2007 12:57:52 CST, "George"
wrote:
If there are no nitrates in the water, what is the algae feeding off
of?