Hey all. My grandparents built a pond a mile back from their house about 11-12 years ago and its has always been a great pond to fish in. This weekend while me and my dad were at our cabin, I noticed that there was a catfish floating dead in the pond. Right now there is still a pretty good sheet of ice on it but there is about a foot or two melted along side the banks so you can see some of the water. I decided to take a walk around the pond and I saw that there was several other fish dead. Saturday I walked around the pond and counted 24 bigger fish dead (bluegills about palm size, some decent size bass, and one large catfish) and damn near 100 little baby fish about an inch or so by our beach we have. Me and my dad are wondering why they all died? Then Sunday I walked around again and counted 2 more big catfish, several other decent bass and bluegills and then under our bridge we have was one of the 7 grass carp we have. The thing was pretty big. Like I said before, there is still quiet a bit of ice on the pond so we dont know yet if there are alot more under the ice. Im sure there is but im almost afraid to even look. This is only a 12 year old pond. The pond is about 22-24 feet deep. We were thinking that our fish population got too overboard and the fish ran out of oxygen over the winter. What do you all think?