Have you tried the 'rec.ponds' NG?

"Avis Merrihead" wrote in message
...
Hi

i am trying to find a product called OClear. You pour it in your pond and
it
miraculously clears the water so it is crystal. The fish can then eat the
biproduct on the bottom. We bought some of this from a Gardening show a
few
years back and cannot find it any more

Any help appreciated

Paul