I'll say this if you have absolutely no moving water in your pond you need
areation because the bacteria will form a surface layer of scum and start to
stink.

wrote in message
...
all "unnatural" ponds need aeration. any pond with pea soup is a ticking
time bomb
when the temp heats up the water wont hold enough oxygen and the big fish
start
dying. just leave a container of water around without aeration and it
starts
stinking really bad. drop in an airstone and it sweetens right up.
everything in
the pond except the nasty bacteria need air. using a UV to clear the pea
soup does
not mean there is enough oxygen. Ingrid


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