I'm so sorry for you!!! I would be sick if that happened in my pond. We live in the country and I know I've been very lucky so far. My pond is also about 4' deep and I've had some of my koi for over 15 years. We have motion lights around the pond and maybe that helps some. I know they go off & on all night long so somethings moving out there. Maybe you could try that along with the radio. Hopefully they won't be back. |