our experiences in shading a pond prove it is not a myth.
using a UV without a proper filter might create a problem, but not in an established
pond. algae thrives off the nutrients before they get to the filter to be removed.
Ingrid

MattR wrote:
He says shading the pond to
remove algae is a myth,
A uv filter would also kill the soup type algae and would do it sooner.
But eventually the filter will have to work correctly because the
fish load will increase to the point where ammonia is a problem. Of
course, with 4200 gallons and 2 small koi, 2 tiny koi, and 40 small
fish, this is going to be a few years. Anyway, as soon as the filter is
working the uv filter might not be needed anymore.


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