I have a small fish pond about 500 gallons. I had about 10 big goldfish that were fat. Yesterday morning I fed them as I usually do. All were there. This morning I went out to feed them and not one fish is there! I have a neighbors cat who is lurking and have had trouble with a Heron in the past. But I put several large window screens on there to protect them. About 2 weeks ago I saw a large black snake near the pond. Screens are not moved. I could picture a snake picking the fish off one are two at a time.......but all of them overnight???
