it was warm yesterday and i was sitting on the banks of my 1/2 acre pond observing the bluegill that decided to come out of their winter slumber. One bluegill in particular looked very bad, He was very dark, almost Black and one of his eyes was missing, instead of an eye it was a large white "cottony" mass. His dorsal fins where kinda redish w/ more white cotton on them. He was swimming very slowly and looked very out of it. I tried to net him to get him outta the pond but failed. Anyone think he is diseased and if so is this contagious? I'll get him out next time I see him, but should i be worried? or is he just a blue heron victim that is infected?