I have slush ice about a inch or two thick floating in the ponds with lots of open water. It's supposed to stay above freezing even at night here until Friday and we may get a good amount of rain Thursday. I would say any ice left by Thursday on my ponds will be gone by the end of the day. Temps have been in the 50's for highs.

However this is on small ponds. I wouldn't be surprised if folks are still icefishing on the larger natural lakes.

I too have some filatmentous algae in a few places on the bottom of my trout pond. Probably from nutrients from the excess fish feed.

I did not run the diffuser much this winter in the warmwater pond. Just kept snow off the ice and ran the diffuser on the edge of the pond briefly to open up some water when temps were above freezing which didn't happen much this winter.

Northeastern Indiana

If pigs could fly bacon would be harder to come by and there would be a lot of damaged trees.