Hi all....I could really use your help. 10 years ago I built myself a large 'stream' in my backyard that houses about 50 goldfish and tadpoles. I have had them for about 10 years and they breed well and i have never had a problem. Recently i had to replace the pond liner and prune the plants around the stream leaving the fish quite exposed. A neighbourhood cat has discovered the stream and has taken to helping himself to my fish at night. I had 82 fish and am down to only 50 now with 3 fish currently in a tank after receiving injuries during one of these attacks. I have researched this problem at length and everything I read says to put wire to stop the cats but this would need ALOT of wire as the stream is easily 15 mtrs long. It is breaking my heart to see my fish suffer like this. Does anyone know of any sure fire way to keep this cat away from my fish? I know roughly where the cat lives but not an exact location so I cant speak to the owners. Any help would be gratefully appreciated.