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Old 15-06-2007, 01:38 PM posted to
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First recorded activity by GardenBanter: Jun 2007
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Default Plastics in ponds

On Jun 15, 12:52 pm, "Brian Watson" wrote:
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My new house has a pond, and I have been put a few fish in, and bought
a range of plants to help the pond balance.

Unfortunately the pond is a rectangle, and about a meter deep across
the entire pond. I recently added a plastic shelf unit into my pond,
in order to put some marginals in. I assumed plastic would pose no
problem, and the pond plant containers themselves are plastic. Since
putting the shelf unit in, I have noticed a shiny film on top of the
pond. I am concerned the plastic is leaknig some chemicals into the
pond and will kill the fish.

I'm after some advice on if the plastic is likely to be the problem,
and if it will stop leaking the chemicals. I have a pump and filter
with uv, but not sure is this will clear up the problem with any great
speed. Is there anything I can add to the pond to break down the
greasy film?

Try laying a sheet of newspaper on it then peeling it off - the oily film
should come too.

My guess is that the oily film is either derived from bird poo dropping into
the water or (less likely with the agitation features you have) a bit of
plant life decaying.
"Fight like the Devil, die like a gentleman."- Hide quoted text -

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Thanks, I'll try that.