OK - I finally have power near my pond and I think I should install an air system. My pond is about 1/4 acre in surface area about 12-14 feet deep. I'm raising rainbow trout. Last winter I tried keeping snow off the pond but lost my fish sometime between late Febuary and May. They all went belly up. I wasn't able to get up there after a significant snowfall in Late Febuary and I'm guessing they eventually ran out of DO. I know they were looking good up until then because I dropped in a camera and could visually "inspect" the fish.

My pond is in NE Minnesota and we get thick ice and plenty of snow.

My thought is that if I run an aerator/De-icing system I won't have this (DO or gas build-up) problem but I'm concerned about the supercooling issue I've read about on other posts.

What should I do? Any system recommendations?

Thanks in advance for any suggestions.

Larry