I was going to fish our pond Saturday morning. I found one dead bluegill and one sticking it's head out of the water gulping for air. It too was soon dead. A couple of hours later a 8-10" bass was sticking it's head out of water and soon died. I then found another bluegill on the other side of the lake with fungus on it fixing to die. It is an 11 acre lake with thousands of fish but do I have something I should be doing. Water is very clear and is warming up. We haven't seen many dead fish but probably wouldn't considering every night the raccoons clean up any dead fish.
Any ideas on what this would be?