Hi everyone, it's been awhile since my last post, but question for everyone, yesterday was 4th of july, and it was seems like I lose a fish or 2 right after the fireworks, but this morning I went outside and my pond was a mess and 1 of my fish was half mutilated on the side of the pond, I have never had any problems like this before, the inside of pond I have 2 smaller houses for the smaller fish and a large slab of a marble like material on top of 4 bricks so they can all fit in the one house and all the houses were either moved or upside down. I also had a water lily potted that was at the very bottom of the pond on its side and my 1 pump was moved to the bottom also. Any suggestions? We really don't have raccoons in the area here and I haven't seen a opossum in a few years. I also wondered if I should leave my outside lights on in the back yard? Will that deter any critter?? I'm at a loss. Even the big slab was half off of the bricks that supports their house. Thanks for your help in any way.