The ducks will be sending the amonia and nitrate levels sky high.

No amount of mechanical filtering will help.

You need to buy a test kit check the levels and add somthing like the
Blagdon pondsafe range to ballance the chemicals.

Details of various chemicals avaliable on my website

www.arghamvillage.co.uk







BenignVanilla wrote in message
...

"Jim" wrote in message
link.net...
We have one pond that is thriving. When we bought two ducks, I built a
second pond so the ducks wouldn't destroy the first pond. I don't have
any
fish or plants in the duck pond - the ducks eat everything in sight. The
problem I have is the water is incredibly hard to keep clean. It isn't a
very large pond - about 300 gallons - and I have it filtered.
Unfortunately
the filter is mucked up and clogged within 2 days of cleaning. I have
tried
pond additives to kill the algae with little success. The water is
bright,
fluorescent green and generally gross.

I realize the ducks are going to soil the water, but are there any
suggestions on how to aggressively clean the water without harming the
ducks? I don't intend to grow fish or plants in it, but the ducks swim
and
drink from the pond.


1. More filtration or
2. Addition of filtering plants like water hyacinth or water lettuce.

The algae is thriving because of the high amount of nutrients. Killing the
algae, just makes more food for the algae. You need a plant to out-compete
the algae.

BV.