How big and deep is your pond? Seems odd to me too. The raccoons around my area typically stay out of the pond if they cannot touch bottom, working the edges. Anything shallow they can stand in, they make a big mess.
I can help you- set up an electric fence. You can buy controllers online, and there are two kinds you can use: one made for family pets, which I have now, and it works, or one for small farm animals like goats. I had one of those which sent a black bear running for its life! This is what you need: 1) a power source of some kind, but 120v. 2) an electric fence controller, and 3) several fiberglass rods that are non-conductive. No metal! Use rods that they use for round dome tents, or ones used for driveway markers (Dollar stores) . Cut them about 18" long and drive them into the ground about 6ft or so apart. 4) You also need a spool of copper wire (not copper coated steel), that will go around the pond. The wire shouldn't be too thin, but thin enough that you can bend it with your fingers. About 20 gauge, but ask at a hardware store. Hook one end onto the controller,and string it around the pond about a foot off the ground. The birds will run under it, but the raccoons will hit it, and with four little feet,they are well grounded. Wrap the wire one of two turns around each post. The other end of the wire is just attached to the last post, NOT TO THE CONTROLLER. When Rocky Raccoon touches the wire it completes the circuit, and- ZAP! And he's gone. If a plant touches the wire, it will ground it and not work, so you must keep any plants (ferns, bull rushes etc.) trimmed back. Touch the wire and see if it works, and what it feels like. It will work. Ken
My pond is very shallow due to many trees and many root systems. It’s 2 - 2.5 feet. I’m pretty sure it’s raccoons.. don’t really have anything else around here that could have done it., pet sure my little 3” goldfish couldn’t have done it. I know koi would root around like that but no koi here.
