Would have loved to see that, knock on wood I do not (as of yet) have problems with racoons, heron now that is my problem.....
Ditto! The Heron took care of my last and most precious Koi. No more Koi for me, unless they are in protected, indoor ponds. I now refuse to pay over a hundred dollars for a single microscopic Heron meal. I could feed 2,000 finches twenty times over for that.
The raccoons around here don't bother my ponds or fish. They eat my garbage, eat my veggies, eat my canned salmon, marshmallows, grapes, bananas, and dog food; but they've never bothered with my fish.
I guess that's why I feed them.