you get the algae for a few reasons

1- too much nitrogen in the water - you need more plants or less fish
2 - too much sun light - more plants - water lillies in particular or near
by plants to shade
3 - the barley straw works but who wants that - basically this does a
composting type thing and burns up the nitrogen in the water so the algae
dies off.

Put impatients in the water - they will suck up the nitrogen like no ones
business.

What truly eats algae is water daphnae - basically fish babies but unless
your fish are breeding you do not have them and you can not buy them.

Also a waterfall helps stirs up the oxyegen so it can combine with the
nitrogen - create a bowl in the water fall and put the impatients in that
bowl and they will filter the nitrogen out.

build a deeper pond - the pond is getting too warm as well.

Good luck

Tomatolord


"me" wrote in message news:NqHKh.8039$B7.3857@bigfe9...

"GE is ME" wrote in message
thlink.net...
I am frustrated. I have seven medium sized fish in a home made fish pond.
I have two pumps, and plants.

Gets green every spring and cant see the fish until December.

What to do?

Thanks.

We have two ~7000 gallon ponds that flow one into the other with two
active waterfalls (800+GPH circulating pumps), so all of the water in the
pond is circulated through two filters (one on the ingress and one on the
egress) about once every 10 hours. The ponds have Koi, a couple of turtles
and some serious bull frogs.

We get algae blooms (at the waterfall end) around this time of year.

The only thing that works for me is to clean the filter media (completely
remove it and hose it clean thoroughly once a year). This seems to keep
the blooms to a minimum until about this time a year from now. Algae never
is allowed to take over very much of the pond.

I have heard barley straw works (not tried it). I have heard that UV light
filters work (not tried them).