Have you tried a salt water dunk for your affected fish? I've had good luck with that. And you don't affect anything other than the fish that go in the bucket with the water/salt mix. BTW use POND SALT not Table Salt. The iodine in regular table salt will kill your fish.

"Could the frog be eating your fish?" Absolutely (tho' I agree with the others that there may be other reasons.) I had a huge frog last year who repeatedly ate some of my goldies (big ones too!) I first noticed a good sized goldie laying beside the pond. Was still alive so I returned it to the pond and said, "hmmmm." Next day, saw a flash of gold out of the pond. When I rounded the pond, I saw him, Mr. Frog with a goldie tail hanging out of his mouth! I chased him, but he jumped into the pond and submerged. A little later he was sitting on the edge of the pond with the goldie. Surprised me, but did keep the fish load in check!

Specifically To: "larryl 7 Southern Oregon"... Your reply was a bit thoughtless regarding your comment referring that 'you built a pond - deal with it' attitude. I am deathly afraid of snakes, just the sight and I go into a panic attack and vomit - all because of just the sight whether it be non-poisonous or poisonous, doesn't matter. Everyone understand having a water garden brings in all types of wildlife...being a lover of ALL animals, including reptiles, I get an emotional attachment to the various creatures that live in my pond. It is obvious snakes have to eat, but I don't necessarily want them to eat from my personal, nurtured pond. You wouldn't want animals eating veggies or flowers from a garden you worked hard at maintaining? So instead of dishing out attitude to those of us that love the pleasure and beauty the ponds and the inhabitants bring to us, try instead giving us useful info, not flippant, sarcastic comments that help no one. This is a forum for us to ask for help and get 'real' advice, not a platform for your opinion. And don't forget, snakes can be a real problem for a lot of people in a lot of different ways.

Hi Two funny stories about that behavior. had a neighborhood cat that every morning would jump up to the edge of the pool get a drink and groom a bit. I put in some large Koi . The cat started his ritual BUT the Koi grabbed his whiskers ,cat was so startled he jumped 3 feet into the air landing in the water. Koi helped him get out.lol Night herons quickly learn that by disturbing the water surface they can get the fish to come to them. I've watched them use a stick and the fish will gather in a group expecting food lol One caught 12 fish in a row even with that the fish still didn't scatter !!! All he had to do was hold still and they came running right back lol. gary