In the past week I have had 25 dead crappie in my 35 acre lake. Never seen this before. Fish looked perfect too, no marks, no white spots and gills still red as they had just floated up. Water temp is 53, lake has aeration, I have had a slight blue/green algae bloom most likely Lyngbya for 2-3 weeks now. A few dead shad as well. Thanks.............