Unless your pond is as big as Lake Erie, the reason you have so much algae
is that you have too many fish. Fish are especieally at emitting pisces
feces - many pay top dollar for for this fertilizer for their gardens. If
you want that many fish in your pond, and you don't want any algae, you
have to remove the nitrogenous waste some how. There are many ways, but
filters especially biological filters are the best way. They are
expensive. IMHO much more expensive than cutting the population of fishes
in your pond.
It is hard to decide which fish must go. Think about it this way.
Whenever you walk in nature and see a pond as big as the pond you
constructed - does it have the same number and size of fish in IT. In
nature most water bodies the size of your constructed pond are probably
referred to as puddles. This not meant as a slam. Think about how many
fish are supported in a small pond where no one adds fish food every day
(or every time the kids want to see the fisheys).
William Kurnig wrote:
> Ray, thanks for the feed back. > I have gold fish, shabunkins, comets (and donners and :-) ) and a > couple of common koi. I also have quite a few water lilies which are > blooming nicely, submerged plants,water fall and aerator. > > I also have "PEA SOUP" I really don't want to add chemicals and can't > afford a UV set (at least this year), the pond cost me plenty. > I just think I should be able to see the fish other then feeding time. > > Bill
-- Frank Reilly
Extension Associate - Urban Nutrient Management
Virginia Cooperative Extension - King George County