The easiest way to keep a pond is to have
lots of plants, a low fish load and move the
water around.

You can buy a solar powered pump and
fountain. Go to www.froogle.com and
you can find 57 hits currently. You'll have
water movement during the day (of course ;-)

I'd cut down on the number of goldfish.Catch
them. Many pet
stores will take them in, call and find out
(different states have different laws and individual
stores have their own policies regarding payment
or trade or just taking them off your hands - the idea
is to keep soft hearted fish owners from turning them
loose in natural waterways). Or someone online
has a humane way to dispose of them.


Sounds like you have a lot of plants already.
Plants will filter fish waste in a low stocked
pond.

Do not put an algaecide in the pond. It just makes
lots of suddenly dead algae that fuels the next
algae bloom and you don't have a filter to strain all
that dead algae out.

To get rid of the green water stop feeding your
remaining fish, just do it once and a while for fun,
they don't need to be fed once their numbers are
reduced in a nicely planted pond of that size.
Excess fish food and fish waste fuels algae.

Put in a few more lilies, look online at some pretty
plants that look interesting to you (make sure they
aren't labeled invasive) and add a few more plants if
you think the pond can support them. Plants will
outcompete algae for the pond's nutrients. Most ponds
will have some algae, it is part of a pond's natural setup,
but you should be able to see into
the pond and not just see fish lips at the surface.

kathy :-)