Hi, I have had to use a cage trap to take care of the coons at my pond. I have also had gray herrings try and eat my fish. I bought a net that goes over my pond and it took care of the problem with them. I have also had muskrats living in my pond for one summer. It was very intertaining. They would swim around like they were putting on a show for me. They do not eat fish so all was good. I hope this helps. I have had my pond for 10 years. If you have other issues with wildlife and I can help, just let me know.