While feeding my bluegill I have noticed that quite a few of them have a dark spot on the top/back of the upper fin. These fish are 4 1/2 months old. Also when I feed the fish all I see is female bluegill, lots of them, where are the males? Do I need to worry about the dark spots? I searched the forums but did not see much info on fish disease, am I overlooking it? Thanks for any info.

If wishes were horses, dreamers would ride.

I must admit that I am not a fan of the Catfish \:\)