On 16 Mar 2005 15:23:26 -0800, "kathy" wrote:

Hi Nemo,

You are having single cell algae problems, green
water?

You may have too many fish.
I looked up green tench and golden rudd online and
the tench look like they get large, not sure of the
rudd. Larger fish provide more fish waste for the algae
to feed upon.

But I would
- reduce the number of fish
- clean the pond of any muck, dead plants, if needed
- build a filter that runs the water through plants

I would also consider an UltraViolet filter if you can
afford it. (I don't have one but others really like them)
They won't work on string algae though.

I've heard of barley straw, but also never tried it.

My keys to clear water are low fish stock, low fish
feeding and plant filtering.

Good luck!
kathy
Hi Kathy,

You may be right, but they only small at the moment and I would like
to keep them as you don't see them too often especially the tench. My
brother has a slightly larger pond, but a lot more golden rudd (no
tench) and he hasn't got the same problem. Neverless I will bear your
comment in mine and try it if all else fails.

Regards

nemo2